Relevant bibliographies by topics / Iron oxides Thermal properties

Academic literature on the topic 'Iron oxides Thermal properties'

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

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

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Iron oxides Thermal properties.'

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 "Iron oxides Thermal properties"

1

Ma, Chuan Guo, Hai Jun Zheng, Xiao Ming Li, and Liang Gao. "Preparation and Microwave Absorbing Properties of Iron Oxides/Carbon Nanotubes Compounds." Advanced Materials Research 548 (July 2012): 133–37. http://dx.doi.org/10.4028/www.scientific.net/amr.548.133.

Full text
Abstract:
A Series of iron oxides/CNTs compounds were prepared using a method of impregnation with iron nitrate solution and followed thermal decomposition. The compounds were characterized by the means of scanning electronic microscope, X-ray diffraction and thermogravimetic analysis. The dielectric and microwave-absorbing properties of EP composites containing the different compounds were further measured in a specific frequency range. The results show that: CNTs show reduction at a high temperature, and can make products of the thermal decomposition of iron nitrate produce iron oxide nanoparticles with different valence states at different temperatures. With increasing decomposition temperature, the iron oxides in CNTs composites in turn are Fe2O3, Fe3O4, FeO and Fe. Compared with pure CNTs, these iron oxides/CNTs composites have better microwave absorbing properties in the wavebands of 7.5GHz ~ 15GHz and 26.5GHz ~ 40GHz. Among those iron oxides /CNTs compounds, Fe3O4/CNTs compound has the best microwave absorbing property.
APA, Harvard, Vancouver, ISO, and other styles
2

Abdel Halim, K. S., M. Ramadan, A. Shawabkeh, and A. S. Alghamdi. "Thermal Techniques for the Production of Fe-M Alloys." Applied Mechanics and Materials 826 (February 2016): 105–10. http://dx.doi.org/10.4028/www.scientific.net/amm.826.105.

Full text
Abstract:
The present manuscript is designed to investigate the possibility of manufacturing iron-metal alloys (Fe-M) via thermal techniques. These techniques are mainly depends on simultaneous reduction-sintering reactions of metal oxides. The reduction of metal oxides is an important property in metallurgical processes. It can be applied to M-Fe-O systems and also is used to develop inter-metallic alloys with specific properties. The produced metallic materials have wide range of applications and are characterized by unique physical and mechanical properties. The composition of the produced alloys is often a key element in optimizing their properties. Iron oxide doped another metal oxide such as nickel oxide is used as starting materials to produce metallic materials containing iron contaminated with nickel metal using thermal techniques. The sintering-reduction reactions of the composite oxide materials are investigated under different operation conditions. The experimental results show that the reduction-sintering thermal techniques are economic and promising routes for the production of different Fe-M alloys. The different factors affecting the rate of reduction such as temperature and ratio of doping materials are investigated. The results obtained are used to demonstrate the kinetics and mechanisms of reduction of metal oxides.
APA, Harvard, Vancouver, ISO, and other styles
3

Ristanovic, Z., A. Kalezic-Glisovic, N. Mitrovic, S. Djukic, D. Kosanovic, and A. Maricic. "The influence of mechanochemical activation and thermal treatment on magnetic properties of the BaTiO3-FexOy powder mixture." Science of Sintering 47, no. 1 (2015): 3–14. http://dx.doi.org/10.2298/sos141121001r.

Full text
Abstract:
Powder mixture of 50 mass % of barium titanate (BaTiO3) and 50 mass % of iron (Fe) was prepared by solid-state reaction technique, i.e. ball milled in air for 60 min, 80 min, 100 min, 120 min and 150 min. During mechanochemical activation it was observed the iron powder transitsion to iron oxides. Depending on the activation time the content of iron oxides FeO, Fe2O3 and Fe3O4 varies. Simultaneously, with the content change of the activated system, magnetic properties change as well. The XRD analysis of milled samples shown that as the activation time increase, the iron oxide percentage increases to, whereby the percentage of BaTiO3 in a total sample mass decreases. The percentage of iron oxides and BaTiO3 in annealed samples changes depending on annealing temperature. The thermomagnetic measurements performed by Faraday method shown that the powder mixture milled for 100 minutes exhibit maximum magnetization prior to annealing. The increase of magnetization maximum was observed after annealing at 540?C with all milled samples, and at room temperature it has enhancement from 10 % to 22 % depending on the activation time. The samples milled for 100 min and 150 min and then sintered at 1200w?C exhibit magnetoelectric properties.
APA, Harvard, Vancouver, ISO, and other styles
4

Cursaru, Laura Madalina, Roxana Mioara Piticescu, Dumitru Valentin Dragut, Ioan Albert Tudor, Victor Kuncser, Nicusor Iacob, and Florentin Stoiciu. "The Influence of Synthesis Parameters on Structural and Magnetic Properties of Iron Oxide Nanomaterials." Nanomaterials 10, no. 1 (January 2, 2020): 85. http://dx.doi.org/10.3390/nano10010085.

Full text
Abstract:
Magnetic iron oxides have been used in biomedical applications, such as contrast agents for magnetic resonance imaging, carriers for controlled drug delivery and immunoassays, or magnetic hyperthermia for the past 40 years. Our aim is to investigate the effect of pressure and temperature on the structural, thermal, and magnetic properties of iron oxides prepared by hydrothermal synthesis at temperatures of 100–200 °C and pressures of 20–1000 bar. It has been found that pressure influences the type of iron oxide crystalline phase. Thus, the results obtained by Mössbauer characterization are in excellent agreement with X-ray diffraction and optical microscopy characterization, showing that, for lower pressure values (<100 bar), hematite is formed, while, at pressures >100 bar, the major crystalline phase is goethite. In addition, thermal analysis results are consistent with particle size analysis by X-ray diffraction, confirming the crystallization of the synthesized iron oxides. One order of magnitude higher magnetization has been obtained for sample synthesized at 1000 bar. The same sample provides after annealing treatment, the highest amount of good quality magnetite leading to a magnetization at saturation of 30 emu/g and a coercive field of 1000 Oe at 10 K and 450 Oe at 300 K, convenient for various applications.
APA, Harvard, Vancouver, ISO, and other styles
5

Mînzatu, Vasile, Corneliu-Mircea Davidescu, Petru Negrea, Mihaela Ciopec, Cornelia Muntean, Iosif Hulka, Cristina Paul, Adina Negrea, and Narcis Duțeanu. "Synthesis, Characterization and Adsorptive Performances of a Composite Material Based on Carbon and Iron Oxide Particles." International Journal of Molecular Sciences 20, no. 7 (March 31, 2019): 1609. http://dx.doi.org/10.3390/ijms20071609.

Full text
Abstract:
The aim of this paper was to produce a new composite material based on carbon and iron oxides, starting from soluble starch and ferric chloride. The composite material was synthesized by simple thermal decomposition of a reaction mass obtained from starch and iron chloride, in an inert atmosphere. Starch used as a carbon source also efficiently stabilizes the iron oxides particles obtained during the thermal decomposition. The reaction mass used for the thermal decomposition was obtained by simultaneously mixing the carbon and iron oxide precursors, without addition of any precipitation agent. The proper composite material can be obtained by rigorously adhering to the stirring time, temperature, and water quantity used during the preparation of the reaction mass, as well as the thermal regime and the controlled atmosphere used during the thermal decomposition. Synthesized materials were characterized using thermogravimetric analysis, X-Ray Diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infra-red spectroscopy (FT-IR). The performances of the obtained material were highlighted by studying their adsorbent properties and by determining the maximum adsorption capacity for arsenic removal from aqueous solutions.
APA, Harvard, Vancouver, ISO, and other styles
6

Khalid Saeed, Khalid Saeed, Noshi Khan Noshi Khan, and Tariq Shah and Muhammad Sadiq Tariq Shah and Muhammad Sadiq. "Morphology, Properties and Application of Iron Oxide/Polycaprolactone Nanocomposites." Journal of the chemical society of pakistan 43, no. 1 (2021): 34. http://dx.doi.org/10.52568/000553.

Full text
Abstract:
Polycaprolactone (PCL) and Fe2O3/PCL nanocomposites sheets/films were prepared by solution casting method. The morphological study illustrated that Fe2O3 nanoparticles were dispersed and embedded well within the PCL matrix. The size of Fe2O3 nanoparticles were below 250 nm. The thermal stability of Fe2O3/PCL nanocomposites was lower than neat PCL, which might be due to Fe2O3 (act as catalyst during the thermal degradation of PCL). The differential scanning calorimetry (DSC) analyses show that the crystallization temperature of the nanocomposites was slightly enhanced as compared to neat PCL. The polarized optical microscopy (POM) analyses showed that the size of Fe2O3/PCL nanocomposites spherulites were smaller than neat PCL. The photodegradation study presented that the nanocomposites photodegraded higher quantity of rhodamine B dye as compared to neat PCL. The neat PCL degraded about 24 and 72% while Fe2O3 (6 wt%)/PCL nanocomposites degraded about 72 and 98% of dye within 2 and 10 h, respectively.
APA, Harvard, Vancouver, ISO, and other styles
7

Khalid Saeed, Khalid Saeed, Noshi Khan Noshi Khan, and Tariq Shah and Muhammad Sadiq Tariq Shah and Muhammad Sadiq. "Morphology, Properties and Application of Iron Oxide/Polycaprolactone Nanocomposites." Journal of the chemical society of pakistan 43, no. 1 (2021): 34. http://dx.doi.org/10.52568/000553/jcsp/43.01.2021.

Full text
Abstract:
Polycaprolactone (PCL) and Fe2O3/PCL nanocomposites sheets/films were prepared by solution casting method. The morphological study illustrated that Fe2O3 nanoparticles were dispersed and embedded well within the PCL matrix. The size of Fe2O3 nanoparticles were below 250 nm. The thermal stability of Fe2O3/PCL nanocomposites was lower than neat PCL, which might be due to Fe2O3 (act as catalyst during the thermal degradation of PCL). The differential scanning calorimetry (DSC) analyses show that the crystallization temperature of the nanocomposites was slightly enhanced as compared to neat PCL. The polarized optical microscopy (POM) analyses showed that the size of Fe2O3/PCL nanocomposites spherulites were smaller than neat PCL. The photodegradation study presented that the nanocomposites photodegraded higher quantity of rhodamine B dye as compared to neat PCL. The neat PCL degraded about 24 and 72% while Fe2O3 (6 wt%)/PCL nanocomposites degraded about 72 and 98% of dye within 2 and 10 h, respectively.
APA, Harvard, Vancouver, ISO, and other styles
8

Khalid Saeed, Khalid Saeed, Noshi Khan Noshi Khan, and Tariq Shah and Muhammad Sadiq Tariq Shah and Muhammad Sadiq. "Morphology, Properties and Application of Iron Oxide/Polycaprolactone Nanocomposites." Journal of the chemical society of pakistan 43, no. 1 (2021): 34. http://dx.doi.org/10.52568/000012.

Full text
Abstract:
Polycaprolactone (PCL) and Fe2O3/PCL nanocomposites sheets/films were prepared by solution casting method. The morphological study illustrated that Fe2O3 nanoparticles were dispersed and embedded well within the PCL matrix. The size of Fe2O3 nanoparticles were below 250 nm. The thermal stability of Fe2O3/PCL nanocomposites was lower than neat PCL, which might be due to Fe2O3 (act as catalyst during the thermal degradation of PCL). The differential scanning calorimetry (DSC) analyses show that the crystallization temperature of the nanocomposites was slightly enhanced as compared to neat PCL. The polarized optical microscopy (POM) analyses showed that the size of Fe2O3/PCL nanocomposites spherulites were smaller than neat PCL. The photodegradation study presented that the nanocomposites photodegraded higher quantity of rhodamine B dye as compared to neat PCL. The neat PCL degraded about 24 and 72% while Fe2O3 (6 wt%)/PCL nanocomposites degraded about 72 and 98% of dye within 2 and 10 h, respectively.
APA, Harvard, Vancouver, ISO, and other styles
9

Smejda-Krzewicka, Aleksandra, Anna Olejnik, and Krzysztof Strzelec. "The effect of metal oxide on the cure, morphology, thermal and mechanical characteristics of chloroprene and butadiene rubber blends." Polymer Bulletin 77, no. 8 (September 20, 2019): 4131–46. http://dx.doi.org/10.1007/s00289-019-02964-z.

Full text
Abstract:
Abstract This paper discusses the role of metal oxides (MeO) in the cross-linking process and useful properties of chloroprene and butadiene rubber (CR/BR) blends. Iron(III) oxide (Fe2O3), iron(II,III) oxide (Fe3O4), silver(I) oxide (Ag2O) or zinc oxide were used. It has found that every proposed metal oxide can be used as a cross-linking agent of the CR/BR blends. The degree of cross-linking was evaluated by means of vulcametric parameters, equilibrium swelling in selected solvents and Mooney–Rivlin elasticity constants. The properties of the cured CR/BR products, such as tensile strength, stress at elongation, tension set under constant elongation and compression set, were also investigated. The results revealed that all CR/BR/MeO vulcanizates were characterized by a high cross-linking degree and satisfying mechanical properties. The most important advantage of obtained rubber goods is very high resistance to flame. The increase in the oxygen index value for the CR/BR/Fe2O3, CR/BR/Fe3O4 and CR/BR/Ag2O vulcanizates compared to the standard cross-linked chloroprene rubber showed that presented metal oxides provided a positive effect on the resistance to flame of the new CR/BR/MeO composites. Satisfactory properties of the studied blends are related to the presence of the interelastomer bonding of both rubbers in the compositions.
APA, Harvard, Vancouver, ISO, and other styles
10

Pashkevich, Aliaksei V., Ludmila A. Bliznyuk, Alexander K. Fedotov, Vladimir V. Khovaylo, Andrei A. Kharchanka, and Vera V. Fedotova. "Thermal and thermoelectric properties of ceramics based on zinc oxide alloyed with iron." Journal of the Belarusian State University. Physics, no. 3 (October 10, 2022): 56–67. http://dx.doi.org/10.33581/2520-2243-2022-3-56-67.

Full text
Abstract:
In this work, we study the effect of adding iron oxides FeO and Fe2O3 in a ratio of 1 : 9 on the thermal and thermoelectric characteristics of ceramics based on zinc oxide ZnO. The samples themselves were made in two stages based on the ceramic technology of sintering powder mixtures in an open atmosphere. Thermal conductivity studies point to the dominant contribution of lattice thermal conductivity at room temperature. The decrease in thermal conductivity as a result of alloying is due to an increase in phonon scattering at point defects introduced into the ZnO lattice (due to the replacement of zinc ions by iron ions) and at grain boundaries (due to microstructure refinement), as well as an increase in porosity (a decrease in density) and the formation of particles of an additional ZnFe2O4 ferrite phase. Alloying wit iron and the accompanying change in the structure of ceramics (decrease in grain size, increase in porosity, precipitation of the ferrite phase) leads to an increase in the thermoelectric figure of merit ZT by 2 times (due to a decrease in electricalresistivity and thermal conductivity with a relatively small decrease in the thermoelectric coefficient). The results obtained can be used to fabricate ZnO-based ceramics with optimal thermoelectric characteristics.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Iron oxides Thermal properties"

1

Walker, Jeremy D. "Exploring the Synthesis and Characterization of Nanoenergetic Materials from Sol-Gel Chemistry." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14573.

Full text
Abstract:
Nanoenergetic composite materials have been synthesized by a sol-gel chemical process where the addition of a weak base molecule induces the gelation of a hydrated metal salt solution. A proposed proton scavenging mechanism, where a weak base molecule extracts a proton from the coordination sphere of the hydrated iron (III) complex in the gelation process to form iron (III) oxide/hydroxide, FeIIIxOyHz, has been confirmed for the weak base propylene oxide (PO), a 1,2 epoxide, as well as for the weak bases tetrahydrofuran (THF), a 1,4 epoxide, and pyridine, a heterocyclic nitrogen-containing compound. THF follows a similar mechanism as PO; the epoxide extracts a proton from the coordination sphere of the hydrated iron complex forming a protonated epoxide which then undergoes irreversible ring-opening after reaction with a nucleophile in solution. Pyridine also extracts a proton from the hydrated metal complex, however, the stable six-membered molecule has low associated ring strain and does not endure ring-opening. Fe2O3/Al energetic systems were synthesized from the epoxides PO, trimethylene oxide (TMO) and 3,3 dimethyl oxetane (DMO). Surface area analysis of the synthesized matrices shows a direct correlation between the surface area of the iron (III) oxide matrix and the quantified exothermic heat of reaction of the nano-scaled aluminum-containing energetic material due to the magnitude of the interfacial surface area contact between the iron (III) oxide matrix and the aluminum particles. The Fe2O3(PO)/Al systems possess the highest heat of reaction values due to the oxide interfacial surface area available for contact with the aluminum particles. Also, reactions containing nano-scale aluminum react differently than those containing micron-scale aluminum. RuO2/Al energetic systems behave differently dependent on the atmosphere the sample is heated. Heating the RuO2/Al samples in an inert atmosphere results in the complete reduction of the ruthenium oxide matrix to Ru(0) before reaction with the aluminum particles, resulting in the exothermic formation of RuxAly intermetallics, with the stoichiometry dependent on the initial Ru:Al concentration. However, heating the samples in an oxygen-rich atmosphere results in an exothermic reaction between RuO2 and Al.
APA, Harvard, Vancouver, ISO, and other styles
2

Ayub, Ibrar. "Oxidation and reduction properties of iron-containing oxides." Thesis, n.p, 2001. http://ethos.bl.uk/.

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

Church, Nathan Stewart. "Magnetic properties of iron-titanium oxides and their nanoscale intergrowths." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609524.

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

Cussen, Edmund John. "The electronic properties of mixed metal oxides." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301436.

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

Taylor, Anthony Park 1963. "Terbium iron cobalt diffusion barrier studies." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276931.

Full text
Abstract:
Thin films (5nm ± 2nm thick) of ZrO2, Al2O3, TiO2, Sm, Gd, Zr, Ni, and Pt were deposited onto TbFeCo films (100nm ± 20nm thick) on silicon and graphite substrates and analyzed with XPS as prospective candidates for TbFeCo diffusion barriers. Metals were chosen primarily according to electronegativity. Samples were typically heated to 272°C in UHV for 20 hours to enhance diffusion. Experiments with the metals were performed in a more consistent manner than with the oxides. The Sm, Gd, and Zr were reactively oxidized during the deposition. The Sm/Sm-oxide and Gd/Gd-oxide appeared to be favorable candidates for TbFeCo diffusion barriers. TbFeCo was not detected near the surface before or after heating the samples to 272°C for 20 hours and depth profiles indicated oxygen contamination decreased steadily as the barrier/TbFeCo interface was approached. For the other materials examined, either the oxides were reduced (at least partially) during heating to 272°C (381°C for Al₂O₃) or diffusion of TbFeCo was detected after heating, indicating that they would not be favorable candidates for TbFeCo diffusion barriers.
APA, Harvard, Vancouver, ISO, and other styles
6

Gu, Jingjing. "Ternary Oxide Structures for High Temperature Lubrication." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc804963/.

Full text
Abstract:
In this research, a temperature dependent tribological investigation of selected ternary oxides was undertaken. Based on the promising results of previous studies on silver based ternary oxides, copper based ternary oxides were selected to conduct a comparative study since both copper and silver are located in the same group in the periodic table of the elements. Two methods were used to create ternary oxides: (i) solid chemical synthesis to create powders and (ii) sputtering to produce thin films. X-ray diffraction was used to explore the evolution of phases, chemical properties, and structural properties of the coatings before and after tribotesting. Scanning electron microscopy, Auger scanning nanoprobe spectroscopy, and X-ray photoelectron spectroscopy were used to investigate the chemical and morphological properties of these materials after sliding tests. These techniques revealed that chameleon coatings of copper ternary oxides produce a friction coefficient of 0.23 when wear tested at 430 °C. The low friction is due to the formation of copper tantalate phase and copper in the coatings. All sputtering coatings showed similar tribological properties up to 430 °C.
APA, Harvard, Vancouver, ISO, and other styles
7

Kolincio, Kamil. "Study of thermal and electronic transport properties in low dimensional oxides." Caen, 2013. http://www.theses.fr/2013CAEN2083.

Full text
Abstract:
Cette thèse est axé sur la synthèse, l'étude structurale et les propriétés physiques des plusieurs matériaux anisotropes et de faible dimensionnalité. Les propriétés physiques de KxP4W8O32 ont été examinées pour clarifier la transition de phase observée, pour x variant de 0,9 à 1,8 , x étant déterminé par analyse EDS en microscopie électronique. Les propriétés physiques comme la résistivité, la magnétorésistance, l’aimantation, le pouvoir thermoélectrique, ainsi que les courbes V(I) sous courant fort ont été étudiées. L’étude structurale a été effectuée à l'aide du rayonnement synchrotron Soleil, sur la ligne Crystal. Les résultats obtenus montrent l'existence d’une onde de densité de charge du matériau étudié. Le terme NaxP4W20O68 a été étudié par oscillations Shubnikov-de Haas. Les membres à grand m de la famille (PO2)4 (WO3)2m ont été synthétisés pour la première fois. Les poudres de m = 6, 9, 10 et 11,5 ont été obtenues par synthèse en voie solide. De grand monocristaux de m = 10 et m = 11,5 ont été synthétisés en phase vapeur. Les structures cristallines ont été résolues par diffraction X sur monocristal. Les propriétés galvanomagnétiques ont été étudiées en lien avec la dimensionnalité effective des matériaux. Pour le composé m=6, une distorsion dans structure cristallographique a été corrélée aux propriétés de transport autour de T = 265 K. Des monocristaux de Bi-Ba -Co-O ont été synthétisés par synthèse en sels fondus, et caractérisés par diffraction des rayons X et diffraction électronique. La composition des échantillons a été déterminée par EDS. La surface et la section transversale des échantillons a été étudiée par SEM. Finalement, l’effet de la qualité cristalline sur les propriétés de transport a été étudié
The thesis was focused on synthesis and study of structural and physical properties of several quasi low-dimensional and anisotropic materials. The physical properties of KxP4W8O32 were examined in purpose to elucidate the phase transition observed for x varying from 0,9 to 1,8. The x content was determined by EDS spectrography under electron microscope. Physical properties like resistivity, magnetoresistance, DC magnetisation, thermopower, thermal transport, and U(I) curves for high currents were studied. Structural study was performed with synchrotron Soleil, beam line Crystal. The obtained results prove the existence of CDW in studied material. The NaxP4W20O68 was sydied by Sbubnikow – de Haas oscillations. The high m members of the (PO2)4(WO3)2m bronzes family were synthesized for the first time. Powders of m = 6, 9, 10 and 11,5 respectively were obtained using solid state reaction method. Large single crystals of m = 10 and m = 11,5 were grown by chemical vapor technique. Crystal structure was solved by X – ray single crystal diffraction. Electrical resistivity and magnetoresistance were studied to investigate the effective dimensionality. The crystallographic and transport measurements were performed to investigate anomaly in m = 6 compound around T = 265. K. Bi-Ba-Co-O misfit cobaltite single crystals were grown by molten salt synthesis method. XRD single crystal diffraction and electron diffraction were performed to identify crystallographic parameters. Composition of the samples was determined by EDS. Surface and cross section of the samples was studied by SEM. Transport properties of samples of different quality was studied
APA, Harvard, Vancouver, ISO, and other styles
8

Yamamoto, Takafumi. "Synthesis, Structure, and Physical Properties of Novel Iron Oxides Prepared by Topotactic Reactions." 京都大学 (Kyoto University), 2012. http://hdl.handle.net/2433/165033.

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

Tassel, Cédric. "Low Temperature Synthesis and Properties of Novel Iron Oxides with Square Planar Coordination." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/126810.

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

Tanaka, Katsuhisa. "ESR AND MOSSBAUER STUDIES ON STRUCTURE AND MAGNETIC PROPERTIES OF IRON-CONTAINING AMORPHOUS OXIDES." Kyoto University, 1990. http://hdl.handle.net/2433/74576.

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

Books on the topic "Iron oxides Thermal properties"

1

McGarvey, G. B. Interactions between iron oxides and copper oxides under hydrothermal conditions. Pinewa, Man: Research Chemistry Branch, Whiteshell Laboratories, 1995.

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

Cornell, R. M. The iron oxides: Structure, properties, reactions, occurrence, and uses. Weinheim: VCH, 1996.

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

Udo, Schwertmann, ed. The iron oxides: Structure, properties, reactions, occurrences, and uses. 2nd ed. Weinheim: Wiley-VCH, 2003.

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

Borggaard, Ole K. Dissolution and adsorption properties of soil iron oxides. Copenhagen: Chemistry Dept., Royal Veterinary and Agricultural University, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Reznit͡skiĭ, L. A. Khimicheskai͡a svi͡azʹ i prevrashchenii͡a oksidov. Moskva: Izd-vo Moskovskogo universiteta, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

L, Stoli͡a︡rova V., and Suvorov, A. V., doktor khimicheskikh nauk., eds. Mass-spektrometricheskoe issledovanie isparenii͡a︡ oksidnykh sistem. Leningrad: "Nauka", 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

A, Semenov G., and Beynon J. H, eds. Mass spectrometric study of the vaporization of oxide systems. Chichester: Wiley, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Bagin, V. I. Magnetizm [alpha]-okislov i gidrookislov zheleza. Moskva: Institut fiziki Zemli AN SSSR, 1988.

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

P, Bennett James. High-temperature properties of magnesia-refractory brick treated with oxide and salt solutions. [Avondale, Md.]: U.S. Dept. of the Interior, Bureau of Mines, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

McEachern, Rod J. A review of the oxidation of uranium dioxide at temperatures below 400C̊. Pinawa, Man: Whiteshell Laboratories, 1997.

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

Book chapters on the topic "Iron oxides Thermal properties"

1

Pepperhoff, Werner, and Mehmet Acet. "Thermal properties." In Constitution and Magnetism of Iron and its Alloys, 57–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-662-04345-5_3.

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

Schwertmann, U. "Some Properties of Soil and Synthetic Iron Oxides." In Iron in Soils and Clay Minerals, 203–50. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-4007-9_9.

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

Schwertmann, U. "Some Properties of Soil and Synthetic Iron Oxides." In NATO ASI Series, 57–84. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4899-2611-1_3.

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

Zboril, R., M. Mashlan, L. Machala, and P. Bezdicka. "Iron(III) Oxides Formed During Thermal Conversion of Rhombohedral Iron(III) Sulfate." In Material Research in Atomic Scale by Mössbauer Spectroscopy, 21–30. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0151-9_3.

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

Coey, J. M. D. "Magnetic Properties of Iron in Soil Iron Oxides and Clay Minerals." In Iron in Soils and Clay Minerals, 397–466. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-4007-9_14.

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

Oda, Katsuro, Yasunari Miwa, and Hideyuki Ohtsuka. "Electromagnetic Properties of Lanthanum Manganese Oxides Doped with Iron." In Industrial Applications of the Mössbauer Effect, 569–78. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0299-8_62.

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

Murad, Enver. "Properties and Behavior of Iron Oxides as Determined by Mössbauer Spectroscopy." In Iron in Soils and Clay Minerals, 309–50. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-4007-9_12.

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

Itatani, Kiyoshi, Ian J. Davies, and Hiroshi Suemasu. "Mechanical and Thermal Properties of Silicon Carbide Composites with Chopped Si-Al-C Fiber Addition." In SiAlONs and Non-oxides, 257–60. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908454-00-x.257.

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

Busti, Nathalie Danree, Rodrigo Parra, and Márcio Sousa Góes. "Synthesis, Properties, and Applications of Iron Oxides: Versatility and Challenges." In Functional Properties of Advanced Engineering Materials and Biomolecules, 349–85. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62226-8_13.

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

Tuček, Jiří, Libor Machala, Jiří Frydrych, Jiří Pechoušek, and Radek Zbořil. "Mössbauer Spectroscopy in Study of Nanocrystalline Iron Oxides From Thermal Processes." In Mössbauer Spectroscopy, 349–92. Hoboken, New Jersey: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118714614.ch18.

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

Conference papers on the topic "Iron oxides Thermal properties"

1

Brüning, B., B. Gries, H. Nakadate, and S. Zimmermann. "New Thermal Spray Powders for SOFC Components." In ITSC2011, edited by B. R. Marple, A. Agarwal, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and A. McDonald. DVS Media GmbH, 2011. http://dx.doi.org/10.31399/asm.cp.itsc2011p0127.

Full text
Abstract:
Abstract In Solid Oxide Fuel Cells (SOFC), thermal spraying has become a preferred process in order to create functional and protective coatings. After a long period of research, SOFC is on the way to become a fully developed technology starting into mass production. Cost aspects of coating generation are becoming decisive. For this reason, thermal spraying has become the preferred process to apply e.g. Manganese Cobalt Iron Oxide (MCF) coatings which prevent the formation of volatile Cr oxides in the SOFC air supply and off-gas. Also Lanthanum Strontium Manganese Oxide (LSM) is now preferentially applied via thermal spraying. The presentation highlights the properties of commercially available spray powders for SOFC, their processing via different spray processes, and the properties of coatings achieved.
APA, Harvard, Vancouver, ISO, and other styles
2

Borisova, A., Y. Borisov, A. Tunik, L. Adeeva, E. Lugscheider, and Chr Herbst. "Thermal Spraying of Coatings Containing Solid Lubricants." In ITSC 1999, edited by E. Lugscheider and P. A. Kammer. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 1999. http://dx.doi.org/10.31399/asm.cp.itsc1999p0174.

Full text
Abstract:
Abstract This paper provides results from experimental studies with regard to novel, thermally sprayed coatings for tribological applications, which consist of mechanical mixtures of cast iron powders (2.16% by weight C and 5.18% by weight Si) and solid lubricant (calcium fluoride or iron oxide) produced in an amount of 10 to 20% by volume. It was established that a basic phase of initial cast iron powder and detonation coatings is gamma-Fe and it is alpha-Fe in plasma coatings. Oxide inclusions which are products of cast iron oxidation are observed in coatings structure. Metallographic investigations showed an uniform distribution of solid lubricant inclusions in a metallic-matrix of coatings. Tribotechnical tests of coatings containing 20 vol. % calcium fluoride carried out in conditions of room temperature indicated that the best antifriction properties were obtained for coatings with calcium fluoride additions which were sprayed by supersonic air-gas plasma method. Paper includes a German-language abstract.
APA, Harvard, Vancouver, ISO, and other styles
3

Eaton, H. E., N. S. Bornstein, and J. T. DeMasi-Marcin. "The Effects of Environmental Contaminants on Industrial Gas Turbine Thermal Barrier Coatings." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-283.

Full text
Abstract:
Thermal barrier coatings, (TBCs) play a crucial role in the performance of advanced aircraft gas turbine engines that power the commercial and military fleets. The same technology is currently being applied to the industrial gas turbines. However the task is more challenging. The environment of the industrial gas turbine is far more demanding. Studies are in progress delineating the relationships between time, temperature and the sinterability of candidate ceramics for use in industrial gas turbine engines. Typical sintering aids include the oxides and alkali salts of silicon, iron, magnesium and calcium. Other experiments focus on the role of the alkali compounds as they affect the mechanical and chemical properties of candidate materials.
APA, Harvard, Vancouver, ISO, and other styles
4

Alvi, Muhammad Awais Ashfaq, Mesfin Belayneh, Kjell Kåre Fjelde, Arild Saasen, and Sulalit Bandyopadhyay. "Effect of Hydrophobic Iron Oxide Nanoparticles on the Properties of Oil Based Drilling Fluid." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18215.

Full text
Abstract:
Abstract In recent years, nanoparticles (NPs) have shown the potential to improve the performance of oil well fluids significantly. Several studies have reported the ability of NPs to produce improved properties of both water and oil-based drilling fluids. In this paper, hydrophobic iron oxide NPs were synthesized by thermal decomposition of iron pentacarbonyl in an inert atmosphere, and its performance was tested in the oil-based drilling fluid with 90/10 oil to water ratio (base fluid). Oil-based drilling fluids treated with nanofluids were formulated by adding 0.5 wt. % and 1.0 wt. % iron oxide NPs in hexane solution to the base drilling fluid. The base fluid and the nanofluid treated drilling fluids were evaluated by characterizing their rheological properties at different temperatures, viscoelastic properties, lubricity, filtrate loss, static & dynamic settling, and separation properties. Results showed that 0.5 wt. % iron oxide dispersed in hexane reduced the HPHT filtrate loss by 70%, filter cake thickness by 55%, and the coefficient of friction by 39%. Moreover, the nanofluid based drilling fluid reduced the free oil layer caused by syneresis during aging at high temperature by 16.3% compared to the base fluid. This study has shown that hydrophobic iron oxide NPs have the potential to improve the properties of oil-based drilling fluid.
APA, Harvard, Vancouver, ISO, and other styles
5

Borom, Marcus P., Curtis A. Johnson, and Louis A. Peluso. "Role of Environmental Deposits in Spallation of Thermal Barrier Coatings on Aeroengine and Land-Based Gas Turbine Hardware." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-285.

Full text
Abstract:
Thermal barrier coating (TBC) spallation on power generation combustors was compared with TBC spallation observed both in military turboshaft engines, and in commercial turboprop engines. In each case, irrespective of operating conditions or geographic location, spallation was linked to the presence and infiltration of high temperature molten phases of similar composition. Electron microprobe analysis found that, from all the possible oxides available in the external environment, only CaO, MgO, Al2O3 and SiO2 (CMAS) are incorporated in the molten phase that infiltrates the TBC microstructure. Iron and nickel oxides from turbine components and zirconia and yttria from the TBC were also found in varying amounts in the molten phase. Melting of environmental deposits in conjunction with infiltration was found to result in: densification of the TBC, an increase in its Young’s modulus and an increase in the room temperature compressive stress in the TBC. Delamination of the TBC during thermal cycling is, thereby, attributed to changes in the mechanical properties and associated changes in the stress state of the coating due to infiltration of the environmental deposit.
APA, Harvard, Vancouver, ISO, and other styles
6

Calvet, Nicolas, Guilhem Dejean, Lucía Unamunzaga, and Xavier Py. "Waste From Metallurgic Industry: A Sustainable High-Temperature Thermal Energy Storage Material for Concentrated Solar Power." In ASME 2013 7th International Conference on Energy Sustainability collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/es2013-18333.

Full text
Abstract:
The ambitious DOE SunShot cost target ($0.06/kWh) for concentrated solar power (CSP) requires innovative concepts in the collector, receiver, and power cycle subsystems, as well as in thermal energy storage (TES). For the TES, one innovative approach is to recycle waste from metallurgic industry, called slags, as low-cost high-temperature thermal energy storage material. The slags are all the non-metallic parts of cast iron which naturally rises up by lower density at the surface of the fusion in the furnace. Once cooled down some ceramic can be obtained mainly composed of oxides of calcium, silicon, iron, and aluminum. These ceramics are widely available in USA, about 120 sites in 32 States and are sold at a very low average price of $5.37/ton. The US production of iron and steel slag was estimated at 19.7 million tons in 2003 which guarantees a huge availability of material. In this paper, electric arc furnace (EAF) slags from steelmaking industry, also called “black slags”, were characterized in the range of temperatures of concentrated solar power. The raw material is thermo-chemically stable up to 1100 °C and presents a low cost per unit thermal energy stored ($0.21/kWht for ΔT = 100 °C) and a suitable heat capacity per unit volume of material (63 kWht/m3for ΔT = 100°C). These properties should enable the development of new TES systems that could achieve the TES targets of the SunShot (temperature above 600 °C, installed cost below $15/kWht, and heat capacity ≥25 kWht/m3). The detailed experimental results are presented in the paper. After its characterization, the material has been shaped in form of plates and thermally cycled in a TES system using hot-air as heat transfer fluid. Several cycles of charge and discharged were performed successfully and the concept was validated at laboratory scale. Apart from availability, low-cost, and promising thermal properties, the use of slag promotes the conservation of natural resources and is a noble solution to decrease the cost and to develop sustainable TES systems.
APA, Harvard, Vancouver, ISO, and other styles
7

Roeb, Martin, Nils Gathmann, Martina Neises, Christian Sattler, and Robert Pitz-Paal. "Analysis of Thermodynamics of Two-Step Solar Water Splitting." In ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/es2008-54240.

Full text
Abstract:
A two-step thermo-chemical cycle for solar production of hydrogen from water has been developed and investigated. It is based on metal oxide redox pair systems, which can split water molecules by abstracting oxygen atoms and reversibly incorporating them into their lattice. After proof-of-principle, successful experimental demonstration of several cycles of alternating hydrogen and oxygen production, and elaboration of process strategies presented in previous contributions, the present work describes a thermodynamic study aiming at the fine tuning of the redox system, at the improvement of process conditions, and at the evaluation of the potential of the process. For the redox material the oxygen uptake capability is an essential characteristic, because it is directly connected to the amount of hydrogen which can be produced. In order to evaluate the maximum oxygen uptake potential of a coating material and to be able to find new redox materials theoretical considerations based on thermodynamic laws and properties are helpful and faster than actual tests. Through thermodynamic calculations it is possible to predict the theoretical maximum output of H2 from a specific redox-material under certain conditions. Calculations were focussed on the two mixed iron oxides nickel-iron oxide and zinc-iron oxide. In the simulation the amount of oxygen in the redox-material is calculated before and after the splitting step on the basis of laws of thermodynamics and available material properties for the mixed-iron oxides used. For the simulation the commercial Software FactSage and available databases for the necessary material properties were used. The analysis showed that a maximum hydrogen yield is achieved if the regeneration temperature is raised to the limits of the operation range, if the temperature for the water splitting is lowered below 800 °C and if the partial pressure of oxygen during regeneration is decreased to the lower limits of the operational range. The increased hydrogen yield at lower splitting temperature of about 800 °C could not be confirmed in experimental results, where a higher splitting temperature led to a higher hydrogen yield. As a consequence it can be stated that kinetics must play an important role especially in the splitting step.
APA, Harvard, Vancouver, ISO, and other styles
8

Allendorf, Mark D., Richard B. Diver, James E. Miller, and Nathan P. Siegel. "Thermodynamic Analysis of Mixed-Metal Ferrites for Hydrogen Production by Two-Step Water Splitting." In ASME 2006 International Solar Energy Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/isec2006-99114.

Full text
Abstract:
A thermodynamic analysis of the two-step water splitting process for the production of hydrogen is reported in this paper. Calculations simulating the preparation of ferrite samples, their thermal reduction to form a mixture of metal oxides, and subsequent reoxidation with steam to produce hydrogen were performed. Mixed-metal spinel ferrites of the general form MFe2O4, where M = Co, Ni, or Zn, are compared with iron spinel, Fe3O4. The results indicate that of the four ferrites examined, nickel spinel has the most favorable combination of properties for use in two-step water splitting.
APA, Harvard, Vancouver, ISO, and other styles
9

Iradukunda, Ange-Christian, Josh Kasitz, Fernando Moreno, and David Huitink. "Evaluation of Thermal and Electrical Properties of Nano-Enhanced PCM for Usage in High-Voltage Systems." In ASME 2019 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ipack2019-6422.

Full text
Abstract:
Abstract Rapid temperature transients sustained during operation of high voltage electronics can be difficult to manage by relying solely on uniform heat removal mechanisms. Phase Change Materials (PCMs) can be useful as a buffer against these intermittent temperature spikes when integrated into electronic packages. However, their integration poses challenges of both physical and electrical interactions within the package, particularly in high voltage systems. The present study aims to evaluate electrical and thermal properties of nano-enhanced PCMs to inform integration in high voltage systems. The nanocomposites are obtained by seeding 0.0006–0.12 wt% of Gold, Graphene Oxide, and Iron Oxide particles to Sorbitol. Improvements in thermal properties including latent heat as high as 15% are observed; however, this comes at the expense of dielectric strength of the PCM.
APA, Harvard, Vancouver, ISO, and other styles
10

Dent, A. H., A. J. Horlock, D. G. McCartney, and S. J. Harris. "The Structure and Properties of Two Fe-Cr-B-Based Coatings Sprayed Using HVOF." In ITSC 1997, edited by C. C. Berndt. ASM International, 1997. http://dx.doi.org/10.31399/asm.cp.itsc1997p0917.

Full text
Abstract:
Abstract Two boron-rich Fe/Cr based gas atomised powders (Armacor M and Armacor C) have been thermally sprayed using the HVOF process and the resultant deposits subsequently characterised, using X-ray diffraction, scanning electron microscopy (SEM), plan view transmission electron microscopy (TEM), and microhardness measurements. The wear and corrosion characteristics of the two alloy coatings have also been investigated by three body abrasive wear (utilising cross-sectional TEM to examine the worn surfaces) and potentiodynamic corrosion testing respectively. Results from microstructural analysis of the as-sprayed deposits revealed the presence of small chromium-iron boride precipitates within a predominantly amorphous matrix in the Fe-based Armacor M coating. The Fe-Cr-based Armacor C coating, however, consisted mainly of regions of nano- and microcrystalline material interspersed with chromium boride precipitation. Iron-chromium oxides have been observed within both of the alloy coatings studied. Both of these alloys exhibit good abrasive wear resistance when compared with other metallic based HVOF sprayed coatings. Both Armacor M and Armacor C also exhibit extensive passivation on exposure to an acidic solution. The wear and corrosion test results are related to the microstructural observations.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Iron oxides Thermal properties"

1

Das, Supriyo. Synthesis and structural, magnetic, thermal, and transport properties of several transition metal oxides and aresnides. Office of Scientific and Technical Information (OSTI), January 2010. http://dx.doi.org/10.2172/985308.

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

Wilmsen, C. W. Growth Mechanism and Properties of the Thermal and Anodic Oxides of the III-V Compound Semiconductors. Fort Belvoir, VA: Defense Technical Information Center, March 1985. http://dx.doi.org/10.21236/ada153406.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Iron oxides Thermal properties' 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