Relevant bibliographies by topics / Pure mg

Academic literature on the topic 'Pure mg'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Pure mg"

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Song, Myoung Youp, Young Jun Kwak, Seong Ho Lee, and Hye Ryoung Park. "Hydrogen storage properties of pure Mg." Korean Journal of Metals and Materials 52, no. 4 (April 5, 2014): 293–97. http://dx.doi.org/10.3365/kjmm.2014.52.4.293.

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Song, Myoung Youp, Young Jun Kwak, Seong Ho Lee, and Hye Ryoung Park. "Comparison of hydrogen storage properties of pure Mg and milled pure Mg." Bulletin of Materials Science 37, no. 4 (June 2014): 831–35. http://dx.doi.org/10.1007/s12034-014-0013-6.

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Kondoh, Katsuyoshi, Masashi Kawakami, Hisashi Imai, Junko Umeda, and Hidetoshi Fujii. "Wettability of pure Ti by molten pure Mg droplets." Acta Materialia 58, no. 2 (January 2010): 606–14. http://dx.doi.org/10.1016/j.actamat.2009.09.039.

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Gottstein, Günter, and T. Al Samman. "Texture Development in Pure Mg and Mg Alloy AZ31." Materials Science Forum 495-497 (September 2005): 623–32. http://dx.doi.org/10.4028/www.scientific.net/msf.495-497.623.

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Texture evolution in pure Mg and Mg alloy AZ31 during deformation and annealing was investigated. The poor low temperature ductility can be attributed to both, insufficient shear systems and unfavorable deformation geometry. Static recrystallization was shown to proceed discontinuously despite little texture change. High temperature deformation was accompanied by dynamic recrystallization with similar texture development as during static recrystallization.
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Kim, Young-Min, Nack J. Kim, and Byeong-Joo Lee. "Atomistic Modeling of pure Mg and Mg–Al systems." Calphad 33, no. 4 (December 2009): 650–57. http://dx.doi.org/10.1016/j.calphad.2009.07.004.

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Das, Hrishikesh, Bharat Gwalani, Xiaolong Ma, and Piyush Upadhyay. "Metallurgical joining of immiscible system: Pure Mg and pure Fe." Materials Characterization 187 (May 2022): 111821. http://dx.doi.org/10.1016/j.matchar.2022.111821.

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Song, Myoung Youp, Young Jun Kwak, Seong Ho Lee, and Hye Ryoung Park. "Comparison of Hydrogen Storage Properties of Pure MgH2 and Pure Mg." Korean Journal of Metals and Materials 52, no. 9 (September 5, 2014): 689–93. http://dx.doi.org/10.3365/kjmm.2014.52.9.689.

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LIU, ZHENMIN, and WEI GAO. "SCRATCH ADHESION EVALUATION OF ELECTROLESS NICKEL PLATING ON Mg AND Mg ALLOYS." International Journal of Modern Physics B 20, no. 25n27 (October 30, 2006): 4637–42. http://dx.doi.org/10.1142/s0217979206041811.

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Magnesium ( Mg ) and its alloys are being used as structural components in industry because of their high strength-to-weight ratio and relatively high stiffness. A shortcoming of Mg based alloys is their poor corrosion and wear resistance. Therefore, coatings or surface treatment are needed for protection purpose. This paper reports our work on electroless plating of Ni - P on Mg alloys. Pure Mg , AZ31 and AZ91 Mg alloys were used as the substrates to investigate friction and adhesion properties of the electroless Ni - P coatings. The maximum friction coefficient (~0.3) was found on the electroless nickel coating of pure Mg substrate. The adhesion strengths of the coatings on AZ31 and AZ91 Mg alloys are higher than that on pure Mg . The critical load (a measure of adhesion strength) of AZ31 reached 13.1 N .
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Liu, Yushun, Jiawei Yan, Dongyue Xie, Yao Shen, Jian Wang, and Guo-zhen Zhu. "Self-patterning screw dislocations in pure Mg." Scripta Materialia 191 (January 2021): 86–89. http://dx.doi.org/10.1016/j.scriptamat.2020.09.014.

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Fan, T. W., Q. Zhang, B. Y. Tang, L. M. Peng, and W. J. Ding. "Interaction between stacking faults in pure Mg." European Physical Journal B 82, no. 2 (July 2011): 143–46. http://dx.doi.org/10.1140/epjb/e2011-20141-y.

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Dissertations / Theses on the topic "Pure mg"

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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.

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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
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Li, Ping. "Low cycle fatique behaviour of pure aluminium and Al-Zn-Mg-Cu alloy between 20 and 260° C /." [S.l.] : [s.n.], 1988. http://library.epfl.ch/theses/?nr=735.

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Subbarayan, Sapthagireesh. "Fabrication of a Novel Al/Mg Composite: : Processing and Characterization of Pure Aluminium, Al/AZ31 Alloy Bi-Metal and Aluminium based Sheet Composites by Severe Plastic Deformation." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23778.

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Araújo, Márcia de Mesquita. "Henriqueta Lisboa: teoria e prática de poesia pura." www.teses.ufc.br, 2013. http://www.repositorio.ufc.br/handle/riufc/11171.

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ARAÚJO, Márcia de Mesquita. Henriqueta Lisboa: teoria e prática de poesia pura. 2013. 107f. – Dissertação (Mestrado) – Universidade Federal do Ceará, Programa de Pós-graduação em Letras, Fortaleza (CE), 2013.
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Esta pesquisa consiste fundamentalmente no estudo crítico de uma seleção de poemas de Henriqueta Lisboa, em especial da obra Flor da morte (1949), naquilo que ela tem de “poesia pura”, segundo concepções estabelecidas a partir das pesquisas de autores que se pronunciam sobre o tema, como Henri Brémond, Henry Decker, Paul Valéry e Robert Penn Warren, e considerando as concepções de poesia expressas pela própria poeta em seus textos ensaísticos. Consideramos, também, textos de estudiosos da obra de Henriqueta Lisboa e da “poesia pura”, como forma de enriquecer nosso estudo, buscando refletir e tentar responder a alguns questionamentos: como a “poesia pura” comparece na obra de Henriqueta Lisboa? A partir dessa inquisição surgem, por conseguinte, outras indagações: em que quantidade, em quais poemas da obra Flor da Morte, segundo qual conceito de poesia pura, em que possível diversidade de manifestações? O fundamento teórico da pesquisa provém de teóricos como de Giorgio Agamben, Jacques Derrida, Emanuel Levinas, Maurice Blanchot, principalmente, Martin Heidegger, entre outros. Por fim, relacionamos os textos estudados para o estabelecimento das conclusões, acrescidas das possibilidades de descobertas geradas por essas leituras, além de levantarmos questões relativas à arte, à literatura brasileira, à escritura, especialmente, e a crítica literária contemporânea, de forma enriquecida e sistematizada, tudo sob o viés da literatura contemporânea.
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Barbosa, Willer Araujo. "Cultura Purí e educação popular no município de Araponga, Minas Gerais." Florianópolis, SC, 2005. http://repositorio.ufsc.br/handle/123456789/102780.

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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências da Educação. Programa de Pós-Graduação em Educação.
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Análise do processo variável da emergência étnica no entorno do Parque Estadual da Serra do Brigadeiro na Zona da Mata de Minas Gerais. A Cultura Puri foi silenciada durante os últimos duzentos anos, a partir da Educação Popular, seu processo intercultural possibilitou a recriação de identidades. Através de entrevistas, de rodas de narração de histórias e das notas de campo em comunidades rurais recupera fontes orais. Capta um encadeamento discursivo recorrente entre violência, fabulações naturalísticas e vontade de liberdade. Se inscreve na tradição da crítica cultural como motor da transformação social. Associa-se à saga colonial migratória, e recoloca a temática dos movimentos sociais. Critica o monoculturalismo do saber através da inteligibilidade dos movimentos sociais e da ecologia de saberes. Enfatiza a constituição de uma outra temporalidade e da dilatação do tempo presente, o que aprofunda as análises de longa duração. Aborda conceitos que se interrelacionam complexamente, tais como: estrutura de sentimentos, hegemonia, residual e emergencial. Toma como referências os estudos de Raymond Williams e de Boaventura de Sousa Santos.
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Al, Bacha Serge. "Générateur d’Hydrogène « vert » pour mobilité légère ou de courte distance Hydrogen generation via hydrolysis of ball milled WE43 magnesium waste Hydrogen generation from ball milled Mg alloy waste by hydrolysis reaction Effect of ball milling strategy (milling device for scaling-up) on the hydrolysis performance of Mg alloy waste Effect of ball milling in presence of additives (Graphite, AlCl3, MgCl2 and NaCl) on the hydrolysis performances of Mg17Al12 Corrosion of pure and milled Mg17Al12 in “model” seawater solution Mechanism of hydrogen formation during the corrosion of Mg17Al12 Hydrolysis properties, corrosion behavior and microhardness of AZ91 "model" alloys SECM investigation of galvanic coupling between Mg and Mg17Al12 in AZ alloys Valorization of AZ91 by the hydrolysis reaction for hydrogen production (Electrochemical approach) Clean hydrogen production by the hydrolysis of Magnesium-based material: effect of the hydrolysis solution." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0312.

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L’hydrolyse des déchets d’alliages de magnésium dans l’eau de mer (i.e. solution aqueuse à 3,5% en masse de NaCl) est une nouvelle approche qui permet à la fois la production de l’hydrogène in-situ et la valorisation de déchets a priori non recyclables. L’objectif de ce travail de thèse est d’optimiser la réactivité de ces déchets par broyage mécanique en présence d’additif(s). Nous avons donc investigué les principaux paramètres de broyage (e.g. atmosphère de broyage, vitesse de broyage, ordre d’ajout des additifs) sur la réactivité d’un alliage WE43 et des déchets d’alliages Mg–Al. Un « scale-up » du procédé de traitement des matériaux a été mené pour explorer la possibilité d’industrialisation du procédé. En outre, nous avons montré que le broyage sous argon est plus avantageux que celui sous hydrogène.Les alliages Mg–Al (plus précisément AZ91) sont les plus utilisés. Dans ces alliages, l’aluminium forme avec le magnésium l’intermétallique Mg17Al12. Pour comprendre le mécanisme de production d’hydrogène à partir d’alliages Mg–Al biphasés (i.e. Mg + Mg17Al12), l’évaluation du comportement de chacun de leurs constituants et de leurs interactions est primordiale. A cet égard, les aspects chimique (i.e. hydrolyse) et électrochimique (i.e. corrosion) de la réaction de Mg17Al12 avec une solution similaire à l’eau de mer et l’effet du broyage en présence d’additifs (e.g. graphite, NaCl, MgCl2 et AlCl3) ont été étudiés. L’évolution de la chimie de surface lors des tests de polarisation a prouvé expérimentalement (par spectroscopie Raman), pour la première fois, la formation d’intermédiaires réactionnels et nous a permis de proposer un mécanisme de formation de H2.L’interaction entre Mg et Mg17Al12 a été explorée en comparant les propriétés de matériaux modèles « AZ91 » (Mg + Mg17Al12). Grâce à la microscopie électrochimique à balayage, l’effet du couplage galvanique est étudié à l’interface des deux composants du matériau. La contribution de Mg17Al12 dans la corrosion des alliages AZ91 a ainsi été clarifiée. L’intermétallique est résistant à la corrosion et accélère la corrosion de Mg en raison du couplage galvanique. Les diverses stratégies de broyage adoptées dans ce travail ont été comparées en les appliquant sur un alliage commercial AZ91. Le matériau traité mécaniquement en présence de graphite et d’AlCl3 présente les meilleures performances en hydrolyse.Finalement, nous avons évalué semi-quantitativement la pureté de H2 (la composition du mélange gazeux et son humidité) produit. L’incidence de certaines conditions expérimentales (e.g. composition de la solution, température, rapport de la masse de poudre au volume de la solution) est reportée. Il a ainsi été montré qu’un réacteur d’hydrolyse de Mg opérant à température ambiante avec l’eau de mer produit de l’hydrogène « propre » in-situ et peut être considéré comme un générateur d’hydrogène « vert » à la demande
The hydrolysis of magnesium alloys wastes in seawater (i.e. 3.5 wt.% of NaCl aqueous solution) is a new approach which allows both in-situ hydrogen production and the valorization of a priori non-recyclable wastes. The objective of this research work is to optimize the reactivity of magnesium-based wastes by ball milling with additives. Therefore, we investigated the effects of the main milling parameters (e.g. milling atmosphere, milling rotation speed, order of the addition of additives) on the reactivity of WE43 alloys and Mg – Al alloys wastes. A « scale-up » of the materials treatment process was conducted to explore the possibility of industrializing the process. In addition, we have shown that milling under argon is more advantageous than under hydrogen.Mg – Al alloys (more precisely AZ91) are the most widely used. In these alloys, Al forms with Mg the intermetallic Mg17Al12. To better understand the mechanism of hydrogen production from these binary Mg – Al alloys (Mg + Mg17Al12), evaluating the behavior of each of their constituents and their interactions is essential. In this regard, the chemical (i.e. hydrolysis) and electrochemical (i.e. corrosion) aspects of the reaction of Mg17Al12 with the model seawater solution and the effect of milling in the presence of additives (e.g. graphite, NaCl, MgCl2 and AlCl3) were studied. The evolution of the surface chemistry during polarization tests has proven experimentally (by Raman spectroscopy), for the first time, the formation of reaction intermediate and has allowed us to propose a mechanism of H2 formation.The interaction between Mg and Mg17Al12 was explored by comparing the properties of model materials of « AZ91 » (Mg + Mg17Al12). Using scanning electrochemical microscopy, the effect of galvanic coupling was studied at the interface of the two components of the material. In view of these studies, the contribution of Mg17Al12 in the corrosion of AZ91 alloys was clarified. The intermetallic is corrosion resistant and accelerates the corrosion of Mg due to galvanic coupling. The various milling strategies adopted in this work were compared by applying them to a commercial AZ91 alloy. Mechanical treated materials with graphite and AlCl3 showed the highest hydrolysis performances.Finally, we semi-quantitatively evaluated the purity of H2 (the composition of the gas mixture and its humidity) produced. The impact of few experimental conditions (e.g. composition of the solution, temperature, ratio of the mass of powder to the volume of solution) is reported. Thus, it has been shown that an Mg hydrolysis reactor operating at room temperature with seawater produces « clean » hydrogen in-situ and can be considered as a « green » hydrogen on demand generator
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SCHOEFFEL, JEAN-PHILIPPE. "Etude des fluctuations structurales dans le compose cugeo3 pur et ses alliages au si, al, mg, ni, zn, et ti." Paris 11, 1998. http://www.theses.fr/1998PA112289.

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L'objectif de cette these a ete d'etudier le compose cugeo3, pour determiner le regime des fluctuations structurales pretransitionnelles, ainsi que l'effet du dopage dans un compose de type spin-peierls. Ceci afin de comprendre le mecanisme de cette transition dans un compose inorganique. Nous avons ainsi realise des experiences de diffraction de rayons x par deux methodes (diffractometrie, et laue monochromatique) sur le compose cugeo3 pur, ainsi que sur les alliages obtenues en substituant le cuivre par du zinc, du magnesium, du nickel, et du titane, et le germanium par du silicium, et de l'aluminium. Dans chaque compose nous avons analyse les correlations des fluctuations structurales pretransitionnelles. De plus, afin de comparer les composes entre eux, et d'etudier les effets dynamiques, nous avons etudie, avec la collaboration de m. Poirier, pierre fertey, et de m. Castonguay du laboratoire de matiere condensee de sherbrooke (quebec, canada), la constante elastique c33 dans les composes dopes presentes precedemment. Ceci nous a permis d'avoir un ensemble de donnees permettant de comparer les echantillons entre eux, et d'essayer d'apprehender l'effet du dopage sur la transition de spin-peierls.
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Almeida, Sérgio Antônio de Paula. "No livro a raiz, na lembrança o passado: Fragmentos Culturais e Memória dos descendentes declarados de indígenas de Mirai." Universidade Federal de Viçosa, 2016. http://www.locus.ufv.br/handle/123456789/10011.

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Após séculos de opressão e de lutas, muitos dos grupos indígenas brasileiros sobreviveram apenas nas narrativas da história. Contudo, em alguns casos, eles deixaram fragmentos de cultura entrelaçados aos modo de vida urbana na atualidade. Na Zona da Mata mineira, região das últimas fronteiras liberadas para ocupação territorial a partir do último quarto do século XVIII e início do século XIX, encontrou-se registros paroquiais de batismos com evidências de resistência de um desses povos de floresta, o povo indígena Puri. Estes índios habitaram também no território da atual cidade de Miraí, antiga Freguesia de Santo Antônio do Muriahé, e parte de suas tradições estão mantidas, ainda que de forma esmaecida, como fragmentos de cultura ancestral presentes nas famílias que se auto-declaram como descendentes deste povo de floresta. Investigá-las no entanto, é um exercício da memória.
After centuries of oppression and fights, many aborigine Brazilians groups survived just in the narratives of history. However, in some cases, they culture. They left fragments of the culture interlaced the urban way of life in the present. The Forest Zone of Minas Gerais, of the last frontiers released for territorial occupation form the last quarter of the eighteenth century and early nineteenth century. We found registration of documents of Parish church of baptism with evidence of resistance to one of these people of the forest, the Puri aborigine. These aborigines also lived in the territory at the present Miraí, older Parish of Santo Antonio do Muriahé, and part of their traditions are maintained. Still dimmed form, an ancestral culture fragments investigate them. However, it is an exercise of memory.
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Marty, Ludovic. "Etude numérique et expérimentale d'une onde de choc induite par impact laser dans une cible solide." Poitiers, 1988. http://www.theses.fr/1988POIT2273.

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Etude experimentale de l'influence de la nature de la cible sur la pression induite par le laser d'une part et par l'utilisation du processus de desadaptation pour amplifier la pression de l'onde de choc dans des cibles multimateriaux d'autre part. Developpement d'analyses numeriques conduisant a la mise en place d'un code monodimensionnel multimateriaux et d'un code bidimensionnel. Ces codes ont permis de preciser les mecanismes de compression du milieu. Application a l'analyse des resultats experimentaux obtenus sur des materiaux de numero atomique tres different (al, au, cu, mo, mg, ta)
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Hagège, Serge. "Contribution a l'etude des joints de grains en coincidence dans la symetrie hexagonale." Caen, 1985. http://www.theses.fr/1985CAEN2019.

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Les joints de grains peuvent etre decrits comme des joints en relation d'orientations de coincidence. Cette description necessite l'introduction d'une serie de parametres necessaires et suffisants pour caracteriser completement la relation d'orientation. Le rapport c/a de la symetrie hexagonale introduit une difficulte supplementaire qui conduit a discuter de la dimension de la coincidence et a envisager la notion de coincidence approchee. Applications aux macles de deformation des metaux hexagonaux compacts que l'on peut decrire comme des joints de coincidence. La notion de symetrie permet de choisir entre les differentes configurations atomiques possibles d'une relation d'orientation donnee. Pour le macle (1012), une configuration de symetrie maximale permet de proposer une description simple du processus de maclage. On confirme par microscopie electronique le role des dislocations dans la structrure des macles de deformation
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Book chapters on the topic "Pure mg"

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Gottstein, Günter, and T. Al Samman. "Texture Development in Pure Mg and Mg Alloy AZ31." In Materials Science Forum, 623–32. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-975-x.623.

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Ono, Nagato, Masaaki Ueda, and Sei Miura. "Mechanisms of Plastic Deformation in Pure Mg and AZ31 Mg Alloy Polycrystals." In Materials Science Forum, 555–58. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-968-7.555.

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Fukuta, Y., D. Terada, T. Sasaki, K. Hono, and N. Tsuji. "Grain Refinement in Pure Mg and Mg-Zn Alloys during Hot Compression Test." In PRICM, 1249–56. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118792148.ch155.

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Fukuta, Y., D. Terada, T. Sasaki, K. Hono, and N. Tsuji. "Grain Refinement in Pure Mg and Mg-Zn Alloys during Hot Compression Test." In Proceedings of the 8th Pacific Rim International Congress on Advanced Materials and Processing, 1249–56. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48764-9_155.

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Kusumoto, Masaaki, and Hideyuki Saitoh. "Effect of Ni Coating on Hydrogenation Kinetics in Pure Mg and Mg-Mg2Ni Eutectic Alloy." In Advanced Materials Research, 865–68. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-463-4.865.

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Jang, Dong-In, and Shae K. Kim. "Effect of Ca(OH)2on Oxidation and Ignition Resistances of Pure Mg." In Essential Readings in Magnesium Technology, 145–49. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118859803.ch24.

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Jang, Dong-In, and Shae K. Kim. "Effect of Ca(OH)2 on Oxidation and Ignition Resistances of Pure Mg." In Essential Readings in Magnesium Technology, 145–49. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48099-2_24.

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Kumar, Pravir, Biplab Kumar Roy, Amitava Mandal, Ashis Mallick, and Manoj Gupta. "Influence of Spindle Rotational Speeds on Pure Mg and 0.1GNP-3Al-Mg Alloy-Nanocomposite in Wire Electrical Discharge Turning Process." In Advances in Engineering Materials, 111–19. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6029-7_11.

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Seyyed Ebrahimi, S. A., and Z. Pishgahi Fard. "An Investigation on the Optimum Conditions for Preparation of Pure Mn-Mg-Zn Ferrite Powder." In Key Engineering Materials, 699–702. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.699.

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Nishimura, Yoshito, Nagato Ono, and Sei Miura. "Etch Pit Observation of Dislocations in Early Deformation of Cu-Al Alloy and Pure Mg Polycrystals." In The Mechanical Behavior of Materials X, 25–28. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-440-5.25.

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Conference papers on the topic "Pure mg"

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Gong, Haibo, Antonios Kontsos, Yoontae Kim, Peter I. Lelkes, Qingwei Zhang, Donggang Yao, Kavan Hazeli, and Jack G. Zhou. "Micro Characterization of Mg and Mg Alloy for Biodegradable Orthopedic Implants Application." In ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/msec2012-7395.

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Magnesium as a candidate metallic biomaterial for biodegradable orthopedic implants was evaluated in-vitro in terms of degradation behavior, biocompatibility and mechanical property both in macro- and micro-scale. Micro structure of pure Mg and AZ61 after degradation in both simulated body fluid (SBF) and cell culture environment were analyzed. Different from AZ61, pure Mg degraded at a higher rate and attracted large amount of salt precipitation which formed a layer covering the surface. Much less pitting degradation and salt deposition were observed on both pure Mg and AZ61 in cell culture environment compared to in SBF. After culturing for 7 days, EAhy926 cells growing on AZ61 showed significant higher proliferation rate as of cells growing on pure Mg. Higher proliferation rates indicated that cells grew better on slow-degrading AZ61 than on fast-degrading pure Mg. Cells growing on AZ61 proliferated much better and assembled together to form a consistent tissue-like micro-structure, while cells spread and reached out on the surface of pure Mg, possibly due to low cell density and lack of cellular communication. The elastic modulus and tensile yield strength of magnesium are closer to those of natural bone than other commonly used metallic biomaterials. It was shown that Mg was biodegradable, biocompatible and had appropriate mechanical strength, thus Mg and its alloys showed great potential for deployment in a new generation of biodegradable orthopedic implants.
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Juvalta, F., Ph Dittrich, M. Jazbinsek, P. Günter, G. Montemezzani, K. Kitamura, and Y. Furukawa. "Interband photorefraction in pure and Mg-doped near-stoichiometric LiTaO3." In Photorefractive Effects, Materials, and Devices. Washington, D.C.: OSA, 2005. http://dx.doi.org/10.1364/pemd.2005.96.

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Reddy, B. Sankara, S. Venkatramana Reddy, and N. Koteeswara Reddy. "Preparation and structural properties of pure and codoped (Mg, Ag) ZnO nanoparticles." In PROCEEDING OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN APPLIED PHYSICS AND MATERIAL SCIENCE: RAM 2013. AIP, 2013. http://dx.doi.org/10.1063/1.4810143.

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Pe´rez-Prado, M. T., A. P. Zhilyaev, L. Jiang, M. E. Kassner, and O. A. Ruano. "Nanostructuring Pure Zr by Severe Plastic Deformation." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59022.

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Severe plastic deformation (SPD) techniques have now successfully been applied to fabricate a large number of nanostructured metals and alloys. Most studies have so far focused on fcc materials, although some studies on Ti and Mg also exist. In this work we describe the nanostructures resulting from processing pure Zr by high pressure torsion (HPT) and accumulative roll bonding (ARB).
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Cao, Guoping, Hiromi Konishi, and Xiaochun Li. "Study on Mechanical Properties and Microstructure of Magnesium/SiC Nanocomposites Fabricated by Ultrasonic Cavitation Based Solidification Processing." In ASME 2007 International Manufacturing Science and Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/msec2007-31165.

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Magnesium, the lightest structural metal, is of significance to improve energy efficiency in various applications. Mg/SiC nanocomposites were successfully fabricated by ultrasonic cavitation based dispersion of SiC nanoparticles in Mg melts. As compared to pure magnesium, the mechanical properties including tensile strength and yield strength of the Mg/SiC nanocomposites were improved significantly, while the good ductility of pure Mg casting was retained. The grain size of the pure magnesium was refined when SiC nanoparticles were added. In the microstructure of Mg/SiC nanocomposites, there are still quite some SiC clusters, but in the areas free of large clusters, the SiC nanoparticles were dispersed very well. TEM study of the interface between SiC nanoparticles and magnesium matrix indicates a good bonding, but no chemical reaction between SiC nanoparticles and magnesium matrix.
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Fialkova, Svitlana, Ruben Kotoka, Sergey Yarmolenko, and Jagannathan Sankar. "In-Situ AFM Corrosion Study of Ti and Mg Thin Films." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-39571.

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Atomic force microscopy (AFM) is powerful technique to study surface properties and processes in the μm- and nm-range. In-situ liquid AFM measurements were conducted to evaluate the surface degradation of two biocompatible metals: Ti as the most bio-inert (bio-stable) and Mg as the promising biodegradable metal. The pure Mg and Ti thin films were deposited using DC magnetron sputtering on glass substrates. The corrosion resistances of the samples were evaluated in in pure water and phosphate buffered saline (PBS). The results showed exponential decay of film thickness in water.
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McGhee, Paul, Devdas Pai, Sergey Yarmolenko, Jagannathan Sankar, Zhigang Xu, Sudheer Neralla, and Yongjun Chen. "Directional-Tribological Investigation of Magnesium Alloys Under As-Cast and Hot Extrusion Conditions." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51920.

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In recent years, magnesium (Mg) and its alloy are being studied for their potential use in orthopedic implants with the novel ability to biodegrade after the implant serves its therapeutic function. Pure Mg, by itself, would not be suitable for use in a load-bearing implant application, due to its high corrosion rate and poor tribological properties. However, through proper alloying, this degradable metal is capable of achieving good mechanical properties reasonably similar to bone, a retarded rate of corrosion and enhanced biocompatibility. Previous studies have shown that alloying Mg with aluminum, lithium, rare earth (RE), zinc (Zn), and calcium (Ca) result in lower corrosion rates and enhanced mechanical properties. Despite the growing popularity of Mg and it alloys, there is relatively little information in the literature on their wear performance. In this paper, we report on an investigation of the directional tribological properties of Mg and Mg-Zn-Ca-RE alloy fabricated via two different manufacturing processing routes: as-cast and hot-extruded after casting, with extrusion ratios of 10 and 50. Pure Mg was cast 350°C. After casting, Mg-Zn-Ca-RE alloy was heat-treated at 510°C. Another Mg-Zn-Ca-RE alloy was hot-extruded at 400°C. Dry sliding wear tests were performed on as-cast and hot-extruded pure Mg and Mg-Zn-Ca-RE alloys using a reciprocating test configuration. Wear rate, coefficient of friction and wear coefficient were measured under applied loads ranging from 0.5–2.5N at sliding frequency of 0.2 Hz for 120 cycles, using microtribometery. Wear properties of the extruded specimen were measured in cross-section and longitudinal section. In the longitudinal section studies, wear properties were investigated along the extrusion direction and the transverse direction. Hardness properties were evaluated using microindentation. Cross-section and longitudinal section were indented with a Vickers indenter under applied load of 2.94 N. Alloying and extrusion enhanced the mechanical properties significantly, increased hardness by 80% and wear resistance by 50% compared to pure Mg. Despite the low hardness in both Mg and the Mg alloy cross-sections, the cross-sections for both displayed higher wear resistance compared to the longitudinal section. In the longitudinal section, wear resistance was higher along the transverse direction of the longitudinal section for both Mg and the Mg alloy. The wear coefficient was used to evaluate how the wear behavior of the material varied with respect to alloying, fabrication process, and direction of wear. The wear coefficient of pure Mg decreased as the extrusion ratio increased, thus, increasing the specific wear rate. The opposite behavior was found in the Mg alloy: as the wear coefficient increases, the specific wear rate decreases. The active wear mechanisms observed on the worn surface of Mg were fatigue, abrasive, adhesive and delamination wear. The same wear mechanisms were observed in the Mg alloy except for fatigue wear. Surface microstructure and topographical characterization were conducted using optical microscopy, scanning electron microscopy mechanical stylus profilometry, and optical profilometry.
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Vardhan, Voleti Sri Sai Harsha, Ambuj Sharma, Sathish Tiruveedhula, and Ratna Sunil Buradagunta. "Comparative Study on the Biodegradation Behavior of Pure Mg in NaCl Solution and Simulated Body Fluids." In 1st International Conference on Mechanical Engineering and Emerging Technologies. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/p-grwes4.

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Developing Mg based implants for temporary applications based on their biodegradation in the physiological environment is a potential research area in the biomedical engineering. Assessing the bio-corrosion in simulated conditions helps to reduce the complexity of research studies associated with in-vivo experiments and can be used to assess the true behavior of the Mg implant in artificial solutions. On the other hand, assessing the corrosion behavior by using 3.5% NaCl solution is a standard ASTM protocol widely used in the industries. Hence, in the present work, degradation of pure Mg due to bio-corrosion in two different solutions i.e simulated body fluids (SBF) and 3.5% NaCl solution has been investigated. From the results, the weight loss measurements indicated higher degradation during the initial 24 h in SBF solution. However, with the increased immersion time to 72 h, due to the deposition of mineral phases from SBF as confirmed from the electron microscopy and X-Ray diffraction study, the degradation was observed as decreased in SBF compared with NaCl solution. Hence, the results demonstrate that the evaluation of degradation behavior of Mg based materials in simulated physiological environments is appropriate compared with the standard NaCl environment.
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Juvalta, F., Ph Dittrich, G. Montemezzani, M. Jazbinsek, P. Günter, S. Takekawa, and K. Kitamura. "Holographic gratings in pure and Mg-doped near-stoichiometric LiTaO3 induced by deep-ultraviolet light." In SPIE Proceedings, edited by Yury Denisyuk, Ventseslav Sainov, and Elena Stoykova. SPIE, 2006. http://dx.doi.org/10.1117/12.676517.

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Maier, P., M. Bechly, and N. Hort. "Solution Heat Treatment on Mechanical Properties and Corrosion of Extruded Mg5Gd Compared to Pure Mg." In MS&T17. MS&T17, 2017. http://dx.doi.org/10.7449/2017/mst_2017_76_83.

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Reports on the topic "Pure mg"

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Levisohn, Sharon, Maricarmen Garcia, David Yogev, and Stanley Kleven. Targeted Molecular Typing of Pathogenic Avian Mycoplasmas. United States Department of Agriculture, January 2006. http://dx.doi.org/10.32747/2006.7695853.bard.

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Intraspecies identification (DNA "fingerprinting") of pathogenic avian mycoplasmas is a powerful tool for epidemiological studies and monitoring strain identity. However the only widely method available for Mycoplasma gallisepticum (MG) and M. synoviae (MS)wasrandom amplified polymorphic DNA (RAPD). This project aimed to develop alternative and supplementary typing methods that will overcome the major constraints of RAPD, such as the need for isolation of the organism in pure culture and the lack of reproducibility intrinsic in the method. Our strategy focussed on recognition of molecular markers enabling identification of MG and MS vaccine strains and, by extension, pathogenic potential of field isolates. Our first aim was to develop PCR-based systems which will allow amplification of specific targeted genes directly from clinical material. For this purpose we evaluated the degree of intraspecies heterogeneity in genes encoding variable surface antigens uniquely found in MG all of which are putative pathogenicity factors. Phylogenic analysis of targeted sequences of selected genes (pvpA, gapA, mgc2, and lp) was employed to determine the relationship among MG strains.. This method, designated gene targeted sequencing (GTS), was successfully employed to identify strains and to establish epidemiologically-linked strain clusters. Diagnostic PCR tests were designed and validated for each of the target genes, allowing amplification of specific nucleotide sequences from clinical samples. An mgc2-PCR-RFLP test was designed for rapid differential diagnosis of MG vaccine strains in Israel. Addressing other project goals, we used transposon mutagenesis and in vivo and in vitro models for pathogenicity to correlated specific changes in target genes with biological properties that may impact the course of infection. An innovative method for specific detection and typing of MS strains was based on the hemagglutinin-encoding gene vlhA, uniquely found in this species. In parallel, we evaluated the application of amplified fragment length polymorphism (AFLP) in avian mycoplasmas. AFLP is a highly discriminatory method that scans the entire genome using infrequent restriction site PCR. As a first step the method was found to be highly correlated with other DNA typing methods for MG species and strain differentiation. The method is highly reproducible and relatively rapid, although it is necessary to isolate the strain to be tested. Both AFLP and GTS are readily to amenable to computer-assisted analysis of similarity and construction of a data-base resource. The availability of improved and diverse tools will help realize the full potential of molecular typing of avian mycoplasmas as an integral and essential part of mycoplasma control programs.
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