Relevant bibliographies by topics / Zn

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Zn'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 May 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Zn.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Zn"

1

Zhu, Zhijun, and Arthur D. Pelton. "Critical assessment and optimization of phase diagrams and thermodynamic properties of RE–Zn systems – Part II – Y–Zn, Eu–Zn, Gd–Zn, Tb–Zn, Dy–Zn, Ho–Zn, Er–Zn, Tm–Zn, Yb–Zn and Lu–Zn." Journal of Alloys and Compounds 641 (August 2015): 261–71. http://dx.doi.org/10.1016/j.jallcom.2015.02.227.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Zhu, Zhijun, and Arthur D. Pelton. "Thermodynamic modeling of the Y–Mg–Zn, Gd–Mg–Zn, Tb–Mg–Zn, Dy–Mg–Zn, Ho–Mg–Zn, Er–Mg–Zn, Tm–Mg–Zn and Lu–Mg-Zn systems." Journal of Alloys and Compounds 652 (December 2015): 426–43. http://dx.doi.org/10.1016/j.jallcom.2015.08.214.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Zhu, Zhijun, and Arthur D. Pelton. "Critical assessment and optimization of phase diagrams and thermodynamic properties of RE–Zn systems-part I: Sc–Zn, La–Zn, Ce–Zn, Pr–Zn, Nd–Zn, Pm–Zn and Sm–Zn." Journal of Alloys and Compounds 641 (August 2015): 249–60. http://dx.doi.org/10.1016/j.jallcom.2015.03.140.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Jaenicke, Lothar. "?Homonukleare? Zn-Zn-Bindung: Zn22+." Chemie in unserer Zeit 39, no. 2 (April 2005): 86. http://dx.doi.org/10.1002/ciuz.200590024.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Spencer, Philip J., Arthur D. Pelton, Youn-Bae Kang, Patrice Chartrand, and Carlton D. Fuerst. "Thermodynamic assessment of the Ca–Zn, Sr–Zn, Y–Zn and Ce–Zn systems." Calphad 32, no. 2 (June 2008): 423–31. http://dx.doi.org/10.1016/j.calphad.2008.03.001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Jäger, Gerold, and Frank Drewes. "The metric dimension of Zn×Zn×Zn is ⌊3n/2⌋." Theoretical Computer Science 806 (February 2020): 344–62. http://dx.doi.org/10.1016/j.tcs.2019.05.042.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

HAGI, Hideki, Kohsuke INOKUCHI, Yasunori HAYASHI, and Kei HIGASHI. "Corrosion Process of Zn-Co, Zn-Fe and Zn-Ni Alloy Electroplatings." Tetsu-to-Hagane 73, no. 14 (1987): 1730–37. http://dx.doi.org/10.2355/tetsutohagane1955.73.14_1730.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Leung, Ka Hin, Siu Lun Ma, and Victor Tan. "Planar Functions from Zn to Zn." Journal of Algebra 224, no. 2 (February 2000): 427–36. http://dx.doi.org/10.1006/jabr.1999.8071.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Hegde, A. Chitharanjan, K. Venkatakrishna, and N. Eliaz. "Electrodeposition of Zn–Ni, Zn–Fe and Zn–Ni–Fe alloys." Surface and Coatings Technology 205, no. 7 (December 2010): 2031–41. http://dx.doi.org/10.1016/j.surfcoat.2010.08.102.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Lozenko, V. V., and V. G. Shepelevich. "Grain and subgrain structure of rapidly solidified Zn, Zn-Cd, Zn-Sn, and Zn-Sb foils." Inorganic Materials 43, no. 1 (January 2007): 20–24. http://dx.doi.org/10.1134/s0020168507010062.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Zn"

1

Biskri, Mohamed. "Tenue à la corrosion de structures assemblées par déformation à froid." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0644/document.

Full text
Abstract:
De nos jours, la galvanisation continue par immersion à chaud est largement utilisée dans les structures métalliques pour protéger les aciers contre la corrosion. Le zinc offre une barrière protectrice grâce à la formation d'un oxyde de surface et d'un effet de protection sacrificielle. Cependant, les procédés de fabrication de la structure ou les assemblages mécaniques par déformation plastique peuvent créer des dommages affectant les performances de corrosion du revêtement.L’objectif de ce travail était d’étudier la durabilité, en environnement agressif, par des essais d’immersion et en enceinte climatique, de revêtements galvanisés déformés à la suite d’une mise en forme. Trois revêtements différents ont été choisis. Un revêtement de zinc utilisé comme référence, un revêtement Zn-Al-Mg dans lequel l’ajout de magnésium et d’aluminium permet une meilleure tenue à la corrosion et enfin un revêtement Zn-55Al choisi pour sa très bonne durabilité en environnement agressif en raison de la quantité importante d’aluminium présente dans sa composition
Nowadays continuous hot-dip galvanizing is widely used in metallic structures to protect steels against corrosion. Zinc provides a protective barrier thanks to the for-mation of a surface oxide and a sacrificial protection effect. However, structure manufacturing processes or mechanical assemblies by plastic deformation can create damage affecting the corrosion performance of the coating.The objective of the present work is to study changes of corrosion resistance induced by plastic deformation using immersion and climatic chamber tests. Three different coatings were chosen. A zinc coating used as a reference, a Zn-Al-Mg coating in which the addition of magnesium and aluminum allows a better resistance to corrosion and finally a Zn-55Al coating chosen for its very good durability in aggressive environment in Because of the large amount of aluminum present in its composition
APA, Harvard, Vancouver, ISO, and other styles
2

Araújo, Sandra Firme de. "Interação P×Zn avaliada pelos teores de Zn total e solúvel e pela atividade da enzima superóxido dismutase em mudas de cafeeiro." Universidade Federal de Viçosa, 2010. http://locus.ufv.br/handle/123456789/5454.

Full text
Abstract:
Made available in DSpace on 2015-03-26T13:53:16Z (GMT). No. of bitstreams: 1 texto completo.pdf: 2894312 bytes, checksum: 8e4e6d33bfbb1f07f987dfb380479055 (MD5) Previous issue date: 2010-07-23
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
The coffee tree is a demanding plant in micronutrients, especially Zn, and the P x Zn interaction is an important issue for the management of tropical soils, due to the use of high doses of P in soils with low availability of this nutrient. In this work was studied the seedlings response of Coffea arabica L. cv. Catuaí to doses of Zn and P, including the supply of P corresponding to a high availability of P, therefore, a high antagonism potential to the availability of Zn. The experiment was carried out in a greenhouse in the period between the October/2009 and January/2010 (122 days of conducting the experiment), using 4 × 4 factorial design, distributed in randomized blocks, with three replications, being four doses of Zn (0, 5, 15, and 45 mg / dm 3 of soil) and P (0, 200, 600 and 1,800 mg / dm 3 of soil). On the soil, having as a source ZnSO 4 .7 H 2O, the doses of Zn were applied trough a soil solution and P levels were incorporated, being the source the triple superphosphate. It was used samples of a Red Yellow sandy-loam originating from Três Marias - MG and coffee seedlings with four pairs of leaves, which were transplanted to pots (2 dm 3 of soil), maintaining soil moisture near to field capacity. It was evaluated the total content of Zn in plant parts (leaf, stem and root), the soluble fraction of Zn (leaf), the levels of total P (leaf, stem and root), the enzyme superoxide dismutase (SOD) , plant height, number of nodes per plant, average length of internodes and dry matter production (leaf, stem and root). There were no significant changes in levels of total Zn in leaves with increasing doses of P added to soil, although the levels of soluble Zn (active) have fallen, indicating, in this case, antagonistic interaction between the variables. The SOD activity was reduced with increasing doses of Zn added to soil. The growth of coffee seedlings was influenced by the interaction between P and Zn.
O cafeeiro é uma planta exigente em micronutrientes, especialmente, em Zn, e a interação P x Zn é uma questão importante para o manejo de solos tropicais, haja vista a utilização de altas doses de P em solos com baixa disponibilidade deste nutriente. Neste trabalho foi estudada a resposta de mudas de Coffea arabica L. cv. Catuaí às doses de Zn e P, incluindo-se o suprimento de P que correspondeu a uma alta disponibilidade de P, portanto, a um alto potencial de antagonismo em relação à disponibilidade de Zn. O experimento foi conduzido em casa-de-vegetação entre o período de outubro/2009 a janeiro/2010 (122 dias de condução do experimento), utilizando esquema fatorial 4 × 4, distribuído em blocos casualizados, com três repetições, sendo quatro doses de Zn (0, 5, 15, e 45 mg/dm3 de solo) e quatro doses de P (0, 200, 600 e 1.800 mg/dm3 de solo). No solo, tendo como fonte ZnSO4.7H2O, as doses de Zn foram aplicadas em solução via solo, e as doses de P foram incorporadas, sendo a fonte o superfosfato triplo. Utilizaram-se amostras de um Latossolo Vermelho Amarelo textura franco-arenosa originário de Três Marias – MG e mudas de café com quatro pares de folhas, que foram transplantadas para vasos (2 dm3 de solo), mantendo-se a umidade do solo próxima à capacidade de campo. Avaliaram-se o teor total de Zn nos órgãos das plantas (folha, caule e raiz) e a fração solúvel de Zn (folha), os teores totais de P (folha, caule e raiz), atividade da enzima superóxido dismutase (SOD), altura de plantas, número de nós por planta, comprimento médio dos entrenós e produção de matéria seca (folha, caule e raiz). Não houve alterações significativas nos teores de Zn total nas folhas com o aumento das doses de P adicionadas ao solo, embora os teores de Zn solúvel (ativo) tenham diminuído, indicando, neste caso, interação antagônica entre as variáveis. A atividade da SOD foi reduzida com o aumento nas doses de Zn adicionadas ao solo. O crescimento das mudas de café foi influenciado pela interação P e Zn.
APA, Harvard, Vancouver, ISO, and other styles
3

Schell, Timothy C. "Supplementing weanling pigs with high concentrations of Zn and the Zn availability of Zn sources for weanling pigs." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-09192008-063113/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Han, Junsoo. "L'électrochimie et désalliage de Zn-Mg/Al-Zn phase pures et l'importance sur la corrosion de l'alliage Zn-Al-Mg." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEC014.

Full text
Abstract:
L'objectif de cette thèse est d’analyser l'électrochimie des phases pures, composants des alliages de revêtement Zn-Al-Mg. Les données électrochimiques ont été utilisées pour prédire du comportement à la corrosion des revêtements d’alliage multiphasé. A cette fin, une base de données de courbes de polarisation élémentaire a été établie en fonction du pH en utilisant la spectroélectrochimie d'émission atomique (AESEC). Le désalliage de la phase intermétallique MgZn2 et de la phase α de Zn-Al (Zn-68Al) ont été étudiés à pH=10,1 représentent les extrêmes contiennent Mg et en Al dans le revêtement d'alliage Zn-Al-Mg, respectivement. Dans la polarisation cathodique, la couche enrichie en Zn (0) a été formée dans les deux cas par dissolution sélective de Mg et Al, respectivement. Cependant, l’influence de cette couche sur le désalliage cathodique différait : pour MgZn2, la dissolution sélective de Mg était restreinte par la couche désalliée, alors que pour Zn-68Al, la dissolution sélective de l'Al n'était pas affectée par cette couche. Il a été observé que le début de la dissolution active de Zn coïncidait avec une réduction de la vitesse de dissolution de l’Al, suggérant un effet inhibitif de la dissolution de Zn sur la dissolution de l’Al. Il a aussi été observé que la dissolution de l’Al dans des milieux alcalins était limitée par la vitesse de dissolution du film de Al(OH)3, mise en évidence par une dissolution de l’Al indépendante de potentiel. Les produits de corrosion les plus stables formés pendant des mesures électrochimiques, les solides précipités dans la solution pendant la titration et la simulation thermodynamique étaient raisonnablement cohérents entre eux. La plupart des espèces précipitées formées dans la solution correspondaient bien à celles prédites par la base de données thermodynamique. Il était en bon accord avec les produits de corrosion de l'alliage, caractérisés après les mesures électrochimiques. Par conséquent, on peut conclure que la base de données thermodynamique peut être utilisée pour prédire et éventuellement modéliser la situation de corrosion réelle
The objective of this Ph.D. project is to investigate the electrochemistry of the pure phases, components of the Zn-Al-Mg coating alloys. The electrochemical data was used as an input for the prediction of corrosion behavior of the multi-phase alloy coatings. To this end, a database of elemental polarization curves was established as a function of pH by using atomic emission spectroelectrochemistry (AESEC). Dealloying of the MgZn2 intermetallic and α-phase of Al-Zn (Zn-68Al) were investigated at pH=10.1 represent the extremes of Mg and Al content in the Zn-Al-Mg alloy coating, respectively. In the cathodic polarization, the Zn(0) enriched layer was formed in both cases by selective dissolution of Mg and Al, respectively. However, the influence of this layer on cathodic dealloying differed: for MgZn2, Mg selective dissolution was restrained by the dealloyed layer, whereas for Zn-68Al, Al selective dissolution was not affected by this layer. It was observed that the onset of active Zn dissolution coincided with a reduction in the Al dissolution rate, suggesting an inhibitive effect of Zn dissolution on Al dissolution. It was observed that Al dissolution in alkaline media was limited by the dissolution rate of the Al(OH)3 film, evidenced by potential independent Al dissolution. The most stable corrosion products formed by electrochemical measurements, precipitated species in the solution during titration experiment and the thermodynamic simulation were reasonably coherent with each other. Most of the precipitated species formed in the solution corresponded reasonably well to those predicted by thermodynamic database. It was in a good agreement with the corrosion products of the alloy, characterized after the electrochemical measurements. Therefore, it can be concluded that the thermodynamic database can be used to predict and eventually model the real corrosion situation
APA, Harvard, Vancouver, ISO, and other styles
5

Pangilian, Gerardo I. "Raman scattering studies of the II-V semiconductors Zn?As? and Zn?P? /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487677267727653.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Hui, Ka-long Aaron, and 許家朗. "Structural analysis of Zn-Zn distance in NDM-1's beta-lactam hydrolysis mechanism." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206564.

Full text
Abstract:
Introduction: The New Delhi metallo-β-lactamase (NDM-1) is an enzyme synthesized by bacterium which hydrolyses β-lactam antibiotics and inhibits their antibiotic effects. Its active site is highly diverse and the hydrolysis mechanism is not yet fully understood. So, there is currently no clinically useful inhibitor for this enzyme. Due to this β-lactam resistant characteristics and the ease of horizontal gene transfer between bacteria, NDM-1 producing bacteria poses a great threat to public health. Objective: Structural analysis on Zn-Zn distance in the active site of NDM-1 was carried out in order to gain a better insight on its hydrolysis mechanism. Method: Structures of NDM-1 were obtained from PDB database and were viewed on PyMOL. Out of 22 NDM-1 structures searched, 12 of them fulfilled the inclusion criterion and were included in this study. Zn-Zn distances were compared with different factors including pH and temperature during crystallization, presence of water in the active site and nature of ligand bound to active site. Results: A trend was observed when Zn-Zn distances were compared with pH. There was also a correlation between Zn-Zn distance and nature of ligand. Distance between the 2 zinc ions in the active site increased in acidic pH value of 6.5 or below and it favours substrate hydrolysis while neutral or alkaline pH shortened the distance between zinc ions leading to hydrolysis inhibition. Discussion: One NDM-1 structure can hydrolyse the substrate in the absence of water molecule. It suggested that there might be another alternative mechanism which does not involve water molecule as nucleophile. Future study can be carried out to verify this hypothesis. On the other hand, it was also suggested that a lower pH, likely to be a pH value of 6.5 or below, could lead to a relatively higher Zn-Zn distance, likely to be 4.00 Å or above. A Zn-Zn distance of 4.00 Å or above would facilitate the hydrolysis mechanism. In other words, a pH value lower than 6.5 might also promote the hydrolysis action against β-lactams. These give us a deeper understanding into the hydrolysis mechanism of NDM-1 and might be useful in future development of clinical inhibitor to tackle the public health threat brought by NDM-1.
published_or_final_version
Physiology
Master
Master of Medical Sciences
APA, Harvard, Vancouver, ISO, and other styles
7

Wang, Zhao. "Selective Hydrogenation of Butadiene over Non-noble Bimetallic Catalysts." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066102/document.

Full text
Abstract:
Ce travail porte sur la préparation et la caractérisation de catalyseurs bimétalliques Cu-Zn, Ni-Zn et Fe-Zn supportés sur TiO2 avec des rapports atomiques variables et sur l'étude de leurs propriétés catalytiques pour l'hydrogénation sélective d'hydrocarbures polyinsaturés. Les méthodes de co-dépôt-précipitation à l'urée (DPu) et co-dépôt-précipitation à pH fixe (DP8) ont été utilisées pour la préparation des matériaux. Les ions métalliques se déposent séquentiellement sur la surface de TiO2 (selon la séquence CuII < ZnII ?FeII
This work investigates the preparation and characterization of titania-supported non-noble bimetallic Cu-Zn, Ni-Zn and Fe-Zn catalysts with various atomic ratios and their catalytic properties for the selective hydrogenation of polyunsaturated hydrocarbons. Co-deposition-precipitation with urea (DPu) and co-deposition-precipitation at fixed pH (DP8) methods were employed for the samples preparation. The metal ions were sequentially deposited onto the TiO2 surface (the sequence of pH for ions deposition being CuII < ZnII ≈FeII < NiII) during the DPu, while they were simultaneously deposited using DP8 method. After sample reduction at proper temperature (350 °C for Cu-Zn, 450 °C for Ni-Zn and 500 °C for Fe-Zn), XRD and STEM-HAADF coupled with EDS showed that bimetallic nanoparticles were formed in Cu-Zn/TiO2 (Cu3Zn1 or Cu0.9Zn0.1 alloy) and Ni-Zn systems (Ni1Zn1 or Ni4Zn1 alloy) with average particle size smaller than 5 nm. Only metallic Fe was detected by XRD in Fe-Zn/TiO2. Zn is inactive for butadiene selective hydrogenation, and acts as a modifier of the monometallic catalysts whose activity follows the sequence: Cu < Fe < Ni. The addition of Zn slightly decreases the activity and influences the selectivity to butenes, but provides much more stable catalysts. The higher stability of the bimetallic catalysts was ascribed to the formation of lower amount of carbonaceous species during the reaction, resulting from the change in the size of the active metal surface ensembles by alloying with Zn
APA, Harvard, Vancouver, ISO, and other styles
8

Perona, Moreno Joaquín. "Mineralizaciones de Zn-Pb asociadas a los diapiros de Murguía y Orduña (Cuenca Vasco-Cantábrica)." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/399579.

Full text
Abstract:
La Cuenca Vasco-Cantábrica (CVC) se formó durante el episodio de rifting del Mesozoico entre las placas Europea e Ibérica (Vergès y García-Senz, 2001). El registro estratigráfico Mesozoico incluye rocas sedimentarias desde el Triásico hasta el Cretácico Superior. Durante el Cretácico Inferior, la intensa actividad tectónica dió como resultado la acumulación de una potente secuencia de sedimentos. En las regiones alrededor de los depocentros, las evaporitas del Triásico generaron estructuras diapíricas (García-Mondéjar et al., 1996), activas desde el Cretácico Inferior hasta el Campaniense. Posteriormente, se reactivaron durante la compresión Alpina (Paleoceno-Eoceno). En dos de estas estructuras, los diapiros de Murguía y Orduña, existen mineralizaciones de Zn-Pb. Encajan en sedimentos siliciclásticos del Albiense superior (Fm. Valmaseda), y rocas carbonatadas del Cenomaniense superior (Serie Rítmica Cenomaniense) y del Turoniense (Margas de Zuazo, Calizas de Gárate), así como en una franja de rocas carbonatadas en la zona de contacto que tienen afinidad con la litología conocida como cap rock. Las mineralizaciones consisten en filones y cuerpos estratoligados, constituidos por esfalerita, galena, pirita, barita, dolomita, calcita y cuarzo. Se ha reconocido la presencia de materia orgánica (betunes sólidos) asociada espacialmente a los sulfuros en prácticamente todas las localidades. Los fluidos mineralizantes consisten en salmueras de hasta un 26% en peso equivalente de NaCl, con unas relaciones de halógenos compatibles con disolución de halita (Grandia et al., 2003). Los datos microtermométricos de las inclusiones fluidas, la madurez de la materia orgánica y los geotermómetros isotópicos indican temperaturas de formación entre 160 y 200ºC. Los valores de δ34S en esfalerita y galena (+4,1 a +14,6‰) y barita (+16,2 a +24,3‰) son compatibles con la reducción de los sulfatos evaporíticos del Triásico (+13,5 a +17,4‰). En la pirita, la mayoría de los valores de δ34S están entre +3,4 y +28,8‰. Los carbonatos asociados a la mineralización presentan unos valores δ13C / δ18O menores respecto a los carbonatos marinos de la CVC. Los valores de δ13C más negativos (hasta -14‰) indican una fuente de carbono relacionada con materia orgánica, mientras que la variación de δ18O (de +17,7 a +27‰) se explica mediante la interacción de los fluidos con las distintas litologías encajantes (siliciclástica o carbonatada). En la zona de contacto del diapiro de Murguía, se ha identificado una franja de carbonatos brechificados, de hasta 50 m de potencia interpretada como un antiguo cap rock. Está constituida principalmente por dolomita, con unos valores de δ13C negativos (hasta -20‰) y una δ18O alrededor de +25‰. Sin embargo, estos valores isotópicos iniciales han sido modificados tras la circulación de los fluidos mineralizantes. Uno de los rasgos distintivos de las mineralizaciones peridiapíricas es la relación entre la formación del cap rock y los sulfuros Sin embargo, tanto las relaciones texturales entre la materia orgánica y los sulfuros como la composición isotópica de los carbonatos, sugieren que las mineralizaciones no están relacionadas con la génesis del cap rock. Las relaciones 87Sr/86Sr de las fases carbonatadas varían de 0,70801 a 0,70949 en las mineralizaciones encajadas en carbonatos y de 0,70986 a 0,71202 cuando el encajante es la Fm Valmaseda. Esta relación sugiere que los valores de 87Sr/86Sr en el fluido fueron tamponados por la litología del encajante. Los valores de los isótopos de plomo en galenas son homogéneos, y están dentro del rango de los depósitos MVT encajados en Cretácico de la CVC (Velasco et al., 1996) sugieriendo una fuente de los metales similar a escala de cuenca.
The Basque Cantabrian Basin (BCB) is related to rift systems that developed between the European and Iberian plates during the Mesozoic (Vergès and García-Senz, 2001). The Mesozoic stratigraphic record includes sedimentary rocks from Triassic up to Upper Cretaceous ages. The intense fault activity during the rifting led to the deposition of a very thick succession of sedimentary rocks, mainly during the Early Cretaceous. Evaporite diapirs consisting of Upper Triassic rocks developed in the regions surrounding the depocenter, and were active from Early Cretaceous to Campanian ages. During the Alpine compression (Palaeocene-Eocene) the halokinesis was reactivated. Stratabound Zn-Pb deposits are known to occur in association with the Orduña and Murguía diapirs, which are located SW of the BCB. The host rocks are sandstones of Upper Albian ages (Valmaseda Formation) and carbonates of Cenomanian and Turonian ages (Rhythmic Cenomanian Series, Zuazo Marls and Gárate Limestones). The mineralizations are also hosted in a carbonated rocks band in the diapiric contact, which are related to the cap rock lithology. The mineralizations consist on veins and stratabound bodies of sphalerite, galena, pyrite, barite, dolomite, calcite and quartz. Organic matter as solid bitumen is ubiquitous and spatially related to sulphide minerals. Sulphide stage fluid was a brine up to 26 wt % NaCl equivalent salinity with halogen ratios compatible with halite dissolution (Grandia et al., 2003). Thermal indicators (fluid inclusion, organic matter data and isotope geothermometry) show formation temperatures between 160ºC and 200ºC. δ34S values of sphalerite and galena (+4,1 a +14,6‰) and barite (+16,2 a +24,3‰) are compatible with evaporite sulphate reduction of Triassic age (+13,5 a +17,4‰). δ34S of most pyrite samples range between +3,4 and +28,8‰. Carbonates associated to sulphides show lower δ13C / δ18O values than the Mesozoic marine carbonates of the BCB. The low δ13C values (up to -14‰) indicate a carbon source related to organic matter, whereas variantions in δ18O (from +17,7 to +27‰) are explained from fluid interaction with different host rock lithologies (silicilastics and carbonates). In the Murguia diapir, a brecciated carbonate band (up to 50 m thick) at the contact zone has been interpreted as a cap rock-related lithology. Isotopic composition of carbonates shows δ13C negative values (up to -20‰) and a δ18O of about +25‰. Those original values have been modified to higher δ13C and lower δ18O values after the circulation of hydrothermal fluids, related to ore formation.. However, textural relationship between organic matter and sulphides and carbonate isotope data point to ore precipitation unrelated to cap rock formation. 87Sr/86Sr values of gangue carbonates range from 0,70801 a 0,70949 when host rocks are carbonates and from 0,70986 to 0,71202 when mineralizations are hosted in siliciclastics. This relationship suggests that 87Sr/86Sr ratios in the fluid was buffered by host lithologies, in agreement with the δ18O data conclusions. Pb isotope values in galena are homogeneous and fall within the Cretaceous field defined for other MVT deposits in the BCB (Velasco et al., 1996), pointing to similar source rocks for the metals at basin scale.
APA, Harvard, Vancouver, ISO, and other styles
9

Markovic, Tamara. "Zn efficiency in rice : the role of 2’-deoxymugineic acid in Zn complexation and uptake." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/55117.

Full text
Abstract:
The focus of this thesis is physicochemical characterisation of Zn complex with a natural phytosiderophore ligand – 2’-deoxymugineic acids (DMA), in light of its possible role in the root Zn uptake in staple crop species, such as rice. Mechanisms behind efficient Zn acquisition in rice cultivars are not yet clearly identified. Yet, this information is vital for the progress of biofortification programs of staple food crops. The work shown in this thesis examines the stability of the [Zn(DMA)] complex in view of the required traits for the fulfillment of the phytosiderophore role. To this end, the ligand in question was synthesised in laboratory conditions. Subsequent tests have shown that the Zn binding affinity of DMA is substantial in comparison to the other rhizosphere present organic molecules. Therefore, solubilisation by DMA is a promising Zn acquisition mechanism in plants. The studies following this investigate stable isotope partitioning upon Zn complexation with DMA by means of experiments, as well as by using computational chemistry calculation methods. Both methods yielded the same conclusion: Zn complexation by DMA favours the heavy 66Zn isotope (∆66Zn ~0.3 ‰), and hence, can introduce a significant isotopic fractionation into the environment. The results of a study on field grown rice are also presented. In this study heavy isotopic enrichment is demonstrated under Zn-deficient conditions in two rice genotypes differing in their susceptibility to Zn-deficient soils; where A69-1 and IR26 are low-Zn tolerant and sensitive cultivars used, respectively. The heavy fractionation factors ((∆66Zn) 0.21 ‰ and ~0.30 ‰ for the tolerant and sensitive rice, respectively) are consistent with Zn solubilisation and uptake by phytosiderophore ligands, and the magnitude of the measured factors corresponds well with the values identified in the preceding experimental and theoretical studies.
APA, Harvard, Vancouver, ISO, and other styles
10

Navarro, Ciurana Dídac. "Caracterización y origen de los depósitos de Zn-(Fe-Pb) en la zona de Riópar (Prebético, SE de España)." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/400145.

Full text
Abstract:
La present Tesi té com objectiu l’estudi dels dipòsits de Zn a la zona de Riópar i les seves roques encaixants, que es localitzen just en el límit entre les zones del Prebètic Intern i l’Extern (Conca Bètica Mesozoica, SE d’Espanya). Això permetrà discernir el tipus i evolució dels fluids mineralitzants, així com els principals controls per la seva circulació, a partir de dades geològiques, petrogràfiques i geoquímiques. La zona de Riópar es caracteritza per presentar múltiples cossos dolomítics allotjats en carbonats de diferents edats. Les composicions isotòpiques de C-O dels cossos dolomítics en el Juràssic Inferior i Mitjà, així com en el Cretaci Superior (δ13C: +2,5 a +3,8‰; δ18O: +26,9 a +29,8‰), són similars a les composicions de les calcàries marines del Juràssic-Cretàcic (δ13C: +0.5 a +3.2‰; δ18O: +27.6 a +30.9‰), fet que suggereix una dolomitització per aigua marina a baixes temperatures. En contraposició, els estudis isotòpics de C-O i microtermomètrics desenvolupats en inclusions fluides de les dolomies allotjades en el Juràssic Superior-Cretàcic Inferior (δ13C: -2,3 a +0,8‰; δ18O: +25,1 a +27,6‰; Th: 150-250ºC) posen de manifest que aquestes dolomies varen ser formades per processos hidrotermals. Els dipòsits de Zn-(Fe-Pb) de Riópar es troben exclusivament en les dolomies d’origen hidrotermal, entre les falles de San Jorge i Socovos. Aquests jaciments es caracteritzen per presentar dos tipologies de mineralitzacions: i) hipogèniques de sulfurs de Zn-(Fe-Pb) de tipus Mississippí Valley (MVT), constituïdes per marcassita, esfalerita i galena; i ii) supergèniques de tipus calamina formades per smithsonita, hidrozincita i cerussita, així com oxi-hidròxids de Fe (hematites i goethita). Les dolomies hidrotermals i els sulfurs es varen formar per una mescla entre un fluid de baixa salinitat, probablement derivat del mar Cretàcic (Fluid A: ≤ 5% en pes eq. de NaCl), el qual va circular a través dels estrats Mesozoics, i una salmorra hidrotermal de conca (Fluid B: ≥ 25% en pes eq. de NaCl) amb metalls i sulfat, que va circular per el basament Paleozoic. Les relacions isotòpiques de Pb en cristalls de galena (206Pb/204Pb: 18,736-18,762; 207Pb/204Pb: 15,629-15,660; 208Pb/204Pb: 38,496-38,595) apunten a una única font de metall, segurament derivada de roques Paleozoiques. Per altre banda, les composicions isotòpiques de sofre dels sulfurs de metalls base (marcassita: -7,5 a -5,8‰ δ34S; esfalerita: -2,2 a +3,5‰ δ34S; galena: -2,8 a -2,4‰ δ34S), suggereixen que el sofre va derivar de sulfat Triàsic (marí y/o de dissolució d’evaporites). La reducció del sulfat (SO42-) a àcid sulfhídric (H2S) s’explica mitjançant reaccions termoquímiques amb compostos orgànic (ex., hidrocarburs, metà) en la zona de precipitació mineral. Les observacions de camp i els resultats de les simulacions de transport de calor i flux de fluid suggereixen que els fluids hidrotermals varen circular canalitzats predominantment a través de la falla de San Jorge, mentre que la falla de Socovos devia actuar com a barrera impedint la fuita del fluid hidrotermal cap el Prebètic Extern. Les composicions isotòpiques en C-O de la smithsonita (δ18O: 27,8 a 29,6 ‰; δ13C: -6,3 a +0,4‰), que constitueix la fase principal dels jaciments de calamina, posen de manifest que: i) el fluid oxidant era d’origen meteòric i va interactuar amb els sulfurs a temperatures de 12 a 19ºC, suggerint un procés de meteorització supergènica sota condicions de clima temperat; i ii) la font de carboni va resultar de la mescla entre dos components de CO2, un derivat de la dissolució de les roques carbonatades de caixa (font enriquida en 13C) i l’altre de la descomposició vegetal (font empobrida en 13C). Finalment, la combinació entre els estudis petrogràfics, isotòpics de C i O i microtermométrics seria la eina d’exploració més útil per identificar les dolomies que són favorables a allotjar mineralitzacions de Zn a la zona del Prebètic. Una de las àrees susceptibles a explorar es el bloc inferior de la falla de l’Alto-Guadalquivir.
La presente Tesis tiene como objetivo el estudio de los depósitos de Zn de la zona de Riópar y sus rocas encajantes, que se localizan justo en el límite entre las zonas del Prebético Interno y el Externo (Cuenca Bética Mesozoica, SE de España). Esto permitirá discernir el tipo y evolución de los fluidos mineralizantes, así como los principales controles para su circulación, a partir de datos geológicos, petrográficos y geoquímicos. La zona de Riópar se caracteriza por presentar múltiples cuerpos dolomíticos albergados en carbonatos de diferentes edades. Las composiciones isotópicas de C-O de los cuerpos dolomíticos en el Jurásico Inferior y Medio, así como en el Cretácico Superior (δ13C: +2,5 a +3,8‰; δ18O: +26,9 a +29,8‰), son similares a las composiciones de las calizas marinas del Jurásico-Cretácico (δ13C: +0,5 a +3,2‰; δ18O: +27,6 a +30,9‰), sugiriendo una dolomitización por agua marina a bajas temperaturas. En cambio, los estudios isotópicos de C-O y microtermométricos desarrollados en inclusiones fluidas de las dolomías alojadas en Jurásico Superior-Cretácico Inferior (δ13C: -2,3 a +0,8‰; δ18O: +25,1 a +27,6‰; Th: 150-250ºC) ponen de manifiesto que estas dolomías fueron formadas por procesos hidrotermales. Los depósitos de Zn-(Fe-Pb) de Riópar se encuentran exclusivamente en las dolomías de origen hidrotermal, entre las fallas de San Jorge y Socovos. Estos yacimientos se caracterizan por presentar dos tipologías de mineralizaciones: i) hipogénicas de sulfuros de Zn-(Fe-Pb) de tipo Mississippi Valley (MVT) constituidas por marcasita, esfalerita y galena; y ii) supergénicas de tipo calamina formadas principalmente por smithsonita, hidrocincita y cerusita, así como oxi-hidróxidos de Fe (hematita y goethita). Las dolomías hidrotermales y los sulfuros se formaron por una mezcla entre un fluido de baja salinidad, probablemente derivado del mar Cretácico (Fluido A: ≤ 5% en peso eq. de NaCl), el cual circuló a través de los estratos Mesozoicos, y una salmuera hidrotermal de cuenca (Fluido B: ≥ 25% en peso eq. de NaCl) con metales y sulfato, que circuló por el basamento Paleozoico. Las relaciones isotópicas de Pb en cristales de galena (206Pb/204Pb: 18,736-18,762; 207Pb/204Pb: 15,629-15,660; 208Pb/204Pb: 38,496-38,595) apuntan a una única fuente de metal, posiblemente derivada de rocas Paleozoicas. Por otra parte, las composiciones isotópicas de S de los sulfuros de metales base (marcasita: -7,5 a -5,8‰ δ34S; esfalerita: -2,2 a +3,5‰ δ34S; galena: -2,8 a -2,4‰ δ34S), sugieren que el azufre derivó de sulfato Triásico (marino y/o de disolución de evaporitas Triásicas). La reducción del sulfato (SO42-) a ácido sulfhídrico (H2S) se explica mediante reacciones termoquímicas con compuestos orgánicos (ej., hidrocarburos, metano) en la zona de precipitación mineral. Las observaciones de campo y los resultados de las simulaciones de transporte de calor y flujo de fluido sugieren que los fluidos hidrotermales circularon canalizados predominantemente a través de la falla de San Jorge, mientras que la falla de Socovos actuaría como barrera impidiendo el escape del fluido hidrotermal hacia el Prebético Externo. Las composiciones isotópicas en C-O de la smithsonita (δ18O: 27,8 a 29,6 ‰; δ13C: -6,3 a +0,4‰), que constituye las fase principal de los yacimientos de calamina, ponen de manifiesto que: i) el fluido oxidante era de origen meteórico e interaccionó con los sulfuros a temperaturas de 12 a 19ºC, sugiriendo un proceso de meteorización supergénica bajo condiciones de clima templado; y ii) la fuente de carbono resultó de la mezcla entres dos componentes de CO2, una derivada de la disolución de las rocas carbonatadas de caja (fuente enriquecida en 13C) y otra de la descomposición vegetal (fuente empobrecida en 13C). Finalmente, la combinación entre los estudios de petrográficos, isotópicos de C y O y microtermométricos sería la herramienta de exploración más útil para identificar las dolomías favorables a albergar mineralizaciones de Zn en la zona del Prebético. Una de las áreas susceptibles a explorar es el bloque inferior de la falla del Alto-Guadalquivir.
The aim of the present PhD Thesis is the study of the Zn ore deposits and their carbonate host rocks in the Riópar area, which is located in the limit between the Internal and External Prebetic Zones (Mesozoic Betic Basin, SE Spain). This study will constrain the type and evolution of mineralizing fluids and the main controls for fluid flow, from geological, petrographical and geochemical data. The Riópar zone is home to extensive outcrops of dolostone bodies, which are hosted within different age carbonates. The C-O isotopic compositions of the dolomitic bodies in Lower and Middle Jurassic, as well as in Upper Cretaceous (δ13C: +2.5 a +3.8‰; δ18O: +26.9 a +29.8‰), are within the range of Jurassic to Cretaceous marine limestones (δ13C: +0.5 a +3.2‰; δ18O: +27.6 a +30.9‰); this supports a seawater dolomitization model at low temperature. Nevertheless, the C-O isotopic and fluid inclusion microthermometric studies from dolostones hosted within Upper Jurassic and Lower Cretaceous carbonates (δ13C: -2.3 a +0.8‰; δ18O: +25.1 a +27.6‰; Th: 150-250ºC) suggest that these dolostones are formed by hydrothermal processes. The Riópar Zn-(Fe-Pb) deposits are enclosed within the hydrothermal dolostones, between San Jorge and Socovos faults. These deposits are characterized by two mineralization types: i) hypogenic Zn-(Fe-Pb) sulfides of Mississippi Valley type (MVT) constituted by marcasite, sphalerite and galena; and ii) supergenic non-sulfide deposits (calamine), formed by predominant smithsonite, hydrozincite and cerussite, as well as Fe-oxi-hydroxides (hematite and goethite). The hydrothermal dolostones and sulfides were formed by a mixing between a low salinity fluid, probably derived from Cretaceous seawater (Fluid A: ≤ 5 wt.% NaCl eq.), which flowed through Mesozoic strata, and a basinal brine (Fluid B: ≥ 25 wt.% NaCl eq.) with metals and sulfate, which flowed within the Paleozoic basement. The Pb isotopic ratios in galena crystals (206Pb/204Pb: 18.736-18.762; 207Pb/204Pb: 15.629-15.660; 208Pb/204Pb: 38.496-38.595) suggest a unique metal source, probably from within Paleozoic rocks. On the other hand, the S isotopic compositions from base metal sulfides (marcasite: -7.5 to -5.8‰ δ34S; sphalerite: -2.2 to +3.5‰ δ34S; galena: -2.8 to -2.4‰ δ34S), points to a sulfur source derived from Triassic sulfate (seawater and/or from dissolution of Triassic evaporites). The sulfate (SO42-) reduction to hydrogen sulfide (H2S) is explained by thermochemical reactions with organic compounds (e.g., hydrocarbons, methane) in the ore formation region. Field observations and results of heat transport and fluid flow simulations suggest that hydrothermal fluids must have flowed upwards predominantly along San Jorge fault, whereas the Socovos fault must have acted as a thermal barrier blocking the scape of fluid to the External Prebetic area. The C-O isotopic composition of smithsonite (δ18O: +27.8 to +29.6‰; δ13C: -6.3 to +0.4‰), which constitute the principal mineral phase of the calamine deposits, puts constrains on: i) the oxidizing fluid type, which was of meteoric origin and interacted with sulfides at temperatures of 12 to 19°C, suggesting a supergene weathering process for the calamine-ore formation under a temperate climate; and ii) the carbon source, that resulted from mixing between two CO2 components, one derived from the dissolution of the host-dolomite (13C-enriched source) and another form vegetation decomposition (13C-depleted component). Therefore, the combination of petrographical, C-O isotopes and microthermometrical studies can be used as an exploration tool to identify favorable dolostones to host Zn mineralizations in the Prebetic Zone. One of the susceptible areas to target is the footwall block of Alto-Guadalquivir fault.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Zn"

1

Philippen, Sander. Philippen & zn. Rotterdam: Post Editions, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

John, Emsley. Zinc (Zn). Cambridge: Hobsons Publishing, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Devereux, Richard. Intervention (I): Zn. [U.K.]: [s.n.], 2003.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Chihara, H., ed. Substances Containing C10H16 … Zn. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02943-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Madelung, O., ed. Pu-Re – Zn-Zr. Berlin/Heidelberg: Springer-Verlag, 1998. http://dx.doi.org/10.1007/b60148.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Fontboté, Lluís, and Maria Boni, eds. Sediment-Hosted Zn-Pb Ores. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-662-03054-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Hellwege, K. H., and A. M. Hellwege, eds. Nuclei Zn - Bi, Diagrams, Indexes. Berlin/Heidelberg: Springer-Verlag, 1993. http://dx.doi.org/10.1007/b46097.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

L, Fontboté, and Boni M. 1948-, eds. Sediment-hosted Zn-Pb ores. Berlin: Springer-Verlag, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Anderson, Kerr, John Ashton, Garth Earls,, Murray Ritzman, Simon Tear, and Tommy B. Thompson, eds. Irish Carbonate-Hosted Zn-Pb Deposits. U.S.A.: Society of Economic Geologists, 1995. http://dx.doi.org/10.5382/gb.21.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kerr, Anderson, and Irish Association for Economic Geology., eds. Irish carbonate-hosted Zn-Pb deposits. Littleton, CO: Society of Economic Geologists, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Zn"

1

Gooch, Jan W. "Zn." In Encyclopedic Dictionary of Polymers, 825. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_13017.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wardell, J. L. "Zn Zinc." In Organometallic Compounds of Zinc, Cadmium and Mercury, 131–56. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-7162-3_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Macintyre, J. E. "Zn Zinc." In Dictionary of Organometallic Compounds, 386–88. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4615-6847-6_62.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Ross, Robert B. "Zinc Zn." In Metallic Materials Specification Handbook, 614–17. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3482-2_56.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

MacIntyre, Jane E. "Zn Zinc." In Dictionary of Organometallic Compounds, 313–18. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4899-6848-7_64.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Nagy, Zoltán. "Zn—Zinc." In Electrochemical Synthesis of Inorganic Compounds, 471–72. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-0545-1_75.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Macintyre, J. E., F. M. Daniel, D. J. Cardin, S. A. Cotton, R. J. Cross, A. G. Davies, R. S. Edmundson, et al. "Zn Zinc." In Dictionary of Organometallic Compounds, 243–44. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4757-4966-3_67.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Anastassakis, Konstantinos. "Zinc (Zn)." In Androgenetic Alopecia From A to Z, 405–16. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-08057-9_47.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Kosik-Bogacka, Danuta I., and Natalia Łanocha-Arendarczyk. "Zinc, Zn." In Mammals and Birds as Bioindicators of Trace Element Contaminations in Terrestrial Environments, 363–411. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-00121-6_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Peloso, Riccardo, Irene Resa, Amor Rodríguez, Ernesto Carmona, Kerstin Freitag, Cameron Jones, Andreas Stasch, Aaron J. Boutland, and Felicitas Lips. "COMPOUNDS WITH Zn-Zn AND Mg-Mg BONDS." In Inorganic Syntheses, 33–45. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119477822.ch3.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Zn"

1

Toumiat, A., S. Zerkout, S. Achour, N. Tabet, and L. Guarbous. "Growth of ZnO Nanorods from Zn and Zn- Zn3N2 Films." In NANOTECHNOLOGY AND ITS APPLICATIONS: First Sharjah International Conference on Nanotechnology and Its Applications. AIP, 2007. http://dx.doi.org/10.1063/1.2776689.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Gogić, S., and S. Milošević. "Laser generated plasma of Li, Zn, and Li-Zn mixture." In The 13th international conference on spectral line shapes. AIP, 1997. http://dx.doi.org/10.1063/1.51837.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Onizawa, K., J. Jansen, M. Schulze, F. Gärtner, and T. Klassen. "Cold Spraying of Zn and Zn-Alloy Coatings for Print." In ITSC2010, edited by B. R. Marple, A. Agarwal, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. DVS Media GmbH, 2010. http://dx.doi.org/10.31399/asm.cp.itsc2010p0163.

Full text
Abstract:
Abstract Zn, Zn-Al and Zn-Mg coatings have been produced by cold spraying. By careful tuning alloy compositions and spray conditions, dense coatings are produced with a hardness of 200 HV0.01 that are up to four times harder than pure bulk Zn, thus meeting the requirements for print applications. These new developments open opportunities for producing harder and more wear resistant coatings, which may allow for the production of larger number of copies without compromising quality.
APA, Harvard, Vancouver, ISO, and other styles
4

Palcut, Marián, Martina Kaľavská, Libor Ďuriška, Ivona Černičková, Marek Adamech, and Jozef Janovec. "Corrosion behavior of Zn-Mg and Zn-Mg-Y alloys." In APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0135772.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Fiederle, Michael, Alex Fauler, Vladimir N. Babentsov, Jan Franc, and Klaus Werner Benz. "Resistivity dependence on Zn concentration in semi-insulating (Cd,Zn)Te." In International Symposium on Optical Science and Technology, edited by Ralph B. James, Larry A. Franks, Arnold Burger, Edwin M. Westbrook, and Roger D. Durst. SPIE, 2003. http://dx.doi.org/10.1117/12.450829.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Liu, Yan, Zhu Zi-Xin, Chen Yong-Xiong, B. Xu, Shining Ma, and Z. Li. "Corrosion Resistance and Microstructure of Arc-Sprayed Zn-Al and Zn-Al-Mg Coatings." In ITSC2005, edited by E. Lugscheider. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2005. http://dx.doi.org/10.31399/asm.cp.itsc2005p1155.

Full text
Abstract:
Abstract In this study, cored wires and high velocity arc spraying technique (HVAS) were applied to produce Zn-Al and Zn-Al-Mg alloy coatings on low carbon steel substrates. The microstructures and mechanical properties were studied by SEM, EDS, XRD, and Vickers micro-indentor. The electrochemical corrosion behaviors of Zn-Al and Zn- Al-Mg coatings were investigated comparing with Zn and Al coatings in 5%NaCl. The results show that, Zn-Al and Zn-Al-Mg coatings have good quality of uniform microstructure and low porosity. The corrosion resistance of Al coating deteriorated rapidly after nearly 16h immersion, and then kept at a relative stable value. In the contrast, the corrosion potential of the coatings containing Zn decreased a little and then increased towards the noble potential. The potentiodynamic polarization tests show that the icorr value of Zn-Al coating changed greatly at different steps, and it trended to increase continuously which may imply that the coating is easy to be corroded. Comparatively, no obvious change had been found in the Zn-Al-Mg coating which may indicate that the corrosion resistance enhanced with the addition of Mg, and the role of Mg appears to be associated with the self sealing process. Abstract only; no full-text paper available.
APA, Harvard, Vancouver, ISO, and other styles
7

Chirvony, Vladimir S., Gennady N. Sinyakov, Roaldas Gadonas, V. Krasauskas, and A. Pelakauskas. "Dynamics of ultrafast photoprocesses in Zn-octaethylporphyrin and Zn-octaethylphlorin pi-monoanions." In Moscow - DL tentative, edited by Sergei A. Akhmanov and Marina Y. Poroshina. SPIE, 1991. http://dx.doi.org/10.1117/12.57354.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Myneni, Satish, Jianshu Duan, Daniel Sigman, Ryan Cloete, Phoebe Lam, Antonio Lanzirotti, Matthew Newville, Alfredo Martinez-Garcia, and Alakendra Roychoudhury. "Speciation of Particulate Zn in the Southern Ocean: Implications for Zn-cycling." In Goldschmidt2023. France: European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.20744.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

TOYOFUKU, P. E., R. F. BEGA, L. M. SANTOS, J. P. WEISS, G. B. STOCCO, and K. COLOMBO. "SÍNTESE E CARACTERIZAÇÃO DO HIDROXIACETATO DE Zn/Co, Zn/Ni e Zn/Cu: APLICAÇÃO COMO CATALISADORES PARA PRODUÇÃO DE BIODIESEL." In XXII Congresso Brasileiro de Engenharia Química. São Paulo: Editora Blucher, 2018. http://dx.doi.org/10.5151/cobeq2018-pt.0372.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

MAKINO, T., N. T. TUAN, C. H. CHIA, Y. SEGAWA, M. KAWASAKI, A. OHTOMO, K. TAMURA, and H. KOINUMA. "EXCITON LOCALIZATION IN (Cd,Zn)O EPILAYERS AND (Cd,Zn)O/(Mg,Zn)O MULTI-QUANTUM WELLS ON LATTICE-MATCHED SUBSTRATES." In Proceedings of 2000 International Conference. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812811387_0067.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Zn"

1

Lacroix, J., and R. Daigneault. The Grevet Zn-Cu massive sulfide deposit. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/205292.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wei, Xiang. Resorption Rate Tunable Bioceramic: Si, Zn-Modified Tricalcium Phosphate. Office of Scientific and Technical Information (OSTI), January 2006. http://dx.doi.org/10.2172/892738.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Paradis, S. TGI-4 Sediment-hosted Zn-Pb deposits: research highlights. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2015. http://dx.doi.org/10.4095/296344.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Paradis, S., N. Van Wagoner, J. Moertle, and M. I. Leybourne. Magmatism and relationships to sediment-hosted Zn-Pb deposits. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2017. http://dx.doi.org/10.4095/299624.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Chatterjee, Tapan, Stacey Kerwien, Eugene LaBuz, and Elias Jelis. Aluminum-Zinc (Al-Zn) Dust Analyses for Recycling Purposes. Fort Belvoir, VA: Defense Technical Information Center, August 2011. http://dx.doi.org/10.21236/ada547552.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Turchi, P. THERMODYNAMIC ASSESSMENT OF THE TERNARY ALLOY SYSTEM LI-SN-ZN. Office of Scientific and Technical Information (OSTI), April 2014. http://dx.doi.org/10.2172/1130035.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Agarwala, Vinod S., Richard Paciej, and James J. Thompson. A Study of Zn/Sn EMI (Electromagnetic Interference)-Seal Material. Fort Belvoir, VA: Defense Technical Information Center, April 1986. http://dx.doi.org/10.21236/ada180321.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Pigage, L. C. Field Guide Anvil Pb - Zn - Ag District Yukon Territory, Canada. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/132336.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Colonia-Roque, Helmer. The combined effect of Cu and Zn on Selenastrum capricornutum. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.3251.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Leybourne, M. I., N. Van Wagoner, S. Paradis, D. Layton-Matthews, and J. A. Moertle. Selwyn Basin magmatism and relationship to sediment-hosted Zn-Pb deposits. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/306603.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Zn' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography