Relevant bibliographies by topics / High-alumina refractory materials

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

Academic literature on the topic 'High-alumina refractory materials'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "High-alumina refractory materials"

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Kadyrova, Z. R., R. Kh Pirmatov, and A. A. Eminov. "Perspective raw materials of Uzbekistan for the production of refractory materials." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 7 (October 29, 2019): 8–11. http://dx.doi.org/10.17073/1683-4518-2019-7-8-11.

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The results of studies of promising raw material resources of Uzbekistan (enriched kaolins, bauxite-like rock, highalumina waste from the gas processing industry) to obtain high-alumina aggregates are presented. It is established that these raw materials in terms of their physico-chemical indicators meet the requirements for aluminosilicate and high-alumina materials used in metallurgical units. Ref. 13. Tab. 3.
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Zaldat, G. I., and E. V. Zalizovskii. "High-alumina cement for refractory concretes." Refractories 27, no. 7-8 (July 1986): 444–48. http://dx.doi.org/10.1007/bf01389514.

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Luz, A. P., A. H. G. Gabriel, L. B. Consoni, C. G. Aneziris, and V. C. Pandolfelli. "Self-reinforced high-alumina refractory castables." Ceramics International 44, no. 2 (February 2018): 2364–75. http://dx.doi.org/10.1016/j.ceramint.2017.10.205.

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Terzic, A., Lj Pavlovic, and A. Milutinovic-Nikolic. "Influence of the phase composition of refractory materials on creep." Science of Sintering 38, no. 3 (2006): 255–63. http://dx.doi.org/10.2298/sos0603255t.

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In this paper, the relationship between the creeping effect and mineralogical characteristics of the applied binding phase for various refractory materials (high-alumina materials, with high or low impurity content, tar bonded either magnesite or dolomite materials and silicate bonded chrom-magnesite materials) is presented. The mechanism of creeping is analyzed and the activation energy for creep for each investigated material is obtained and discussed. All investigated materials are creep sensitive under investigated conditions and have similar activation energies for creep except high-alumina refractories with a low impurity content.
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5

Singh, V. K. "High-alumina refractory castables with calcium aluminate binder." Journal of Materials Science Letters 8, no. 4 (April 1989): 424–26. http://dx.doi.org/10.1007/bf00720694.

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Kascheev, I. D., and K. G. Zemlyanoi. "Possibility of obtaining high-alumina materials from industrial wastes of ceramic and refractory industry (Review)." NOVYE OGNEUPORY (NEW REFRACTORIES) 1, no. 5 (October 27, 2019): 83–89. http://dx.doi.org/10.17073/1683-4518-2019-5-83-89.

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The issues of obtaining aluminum oxide from man-made materials, the issues of differences in the structure, composition and properties of alumina obtained by different technological methods and the issues of providing high-alumina materials to the domestic ceramic, electronic and refractory industries are reviewed.
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Kononov, V. A., and V. K. Sturman. "Current types of imported high-alumina raw materials for refractory production." Refractories and Industrial Ceramics 38, no. 1 (January 1997): 30–33. http://dx.doi.org/10.1007/bf02768232.

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Weidner, Anja, Yvonne Ranglack-Klemm, Tilo Zienert, Christos G. Aneziris, and Horst Biermann. "Mechanical High-Temperature Properties and Damage Behavior of Coarse-Grained Alumina Refractory Metal Composites." Materials 12, no. 23 (November 27, 2019): 3927. http://dx.doi.org/10.3390/ma12233927.

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The present study provides the mechanical properties of a new generation of refractory composites based on coarse-grained Al2O3 ceramic and the refractory metals Nb and Ta. The materials were manufactured by refractory castable technology and subsequently sintered at 1600 °C for 4 h. The mechanical properties and the damage behavior of the coarse-grained refractory composites were investigated at high temperatures between 1300 and 1500 °C. The compressive strength is given as a function of temperature for materials with two different volume fractions of the refractory metals Ta and Nb. It is demonstrated that these refractory composites do not fail in a completely brittle manner in the studied temperature range. The compressive strength for all materials significantly decreases with increasing temperature. Failure occurred due to the formation of cracks along the ceramic/metal interfaces of the coarse-grained Al2O3 particles. In microstructural observations of sintered specimens, the formation of tantalates, as well as niobium oxides, were observed. The lower compressive strength of coarse-grained Nb-Al2O3 refractory composites compared to Ta-Al2O3 is probably attributed to the formation of niobium oxides. The formation of tantalates, however, seems to have no detrimental effect on compressive strength.
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Criado, E., J. S. Moya, and S. De Aza. "Alkalines vapour attack on a high alumina refractory." Ceramics International 11, no. 4 (October 1985): 145. http://dx.doi.org/10.1016/0272-8842(85)90198-1.

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Luz, A. P., S. J. S. Lopes, D. T. Gomes, and V. C. Pandolfelli. "High-alumina refractory castables bonded with novel alumina-silica-based powdered binders." Ceramics International 44, no. 8 (June 2018): 9159–67. http://dx.doi.org/10.1016/j.ceramint.2018.02.124.

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Dissertations / Theses on the topic "High-alumina refractory materials"

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Morel, Bayram Murat. "Investigation Of The Effects Of Temperature On Physical And Mechanical Properties Of Monolithic Refractory Made With Pozzolanic Materials." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606700/index.pdf.

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In recent years, scientific studies are carried out to find new refractory material. Having good mechanical properties under very high temperatures, refractories are widely used in industries like iron, steel, glass, cement and pottery. Researches are focused on monolithic refractory making because of their superior properties comparing to conventional firebrick refractories. Providing a mono-block body, having no joints makes the monolithic refractories more durable at elevated temperatures. Easier production and installation are two main points that people are choosing monolithic refractories, thus an economy is made. In this study, for monolithic refractory production, high alumina cement was used as binding material. It is known that the increase in alumina (Al2O3) content increases the high temperature resistance, so that crushed firebrick, having 85% Al2O3 was used as aggregate. Pozzolanic materials, which are silica fume, fly ash, ground granulated firebrick and ground granulated blast furnace slag, were added to improve physical and mechanical properties of mortar. With the addition of steel fibres, change in compressive strength and flexural strength was observed.Superplasticizer was used to understand its behaviour under high temperatures. Portland cement containing mortars were also prepared to make comparison with high alumina cement containing specimens. Specimens were prepared in 5x5x5 cm and 4x4x16 cm prisms. They were cured for one day at curing room, then heated to 105°
C and then heated to 1100°
C. Weight, size and ultrasound velocity change, compressive strength and flexural strength tests were done to determine physical and mechanical properties of the monolithic refractories, before and after heating. Heated and non-heated specimens were pulverized for microstructural investigation with X-Ray diffraction (XRD) method. Using high alumina cement with 50 &ndash
60 % granulated blast furnace slag or granulated firebrick, by the weight of cement, and crushed firebrick as aggregate, a satisfactory monolithic refractory material was made. It was observed that, mechanical properties were decreased at the Portland cement used mortars after several times of heating and cooling cycles. Also, it was determined that the microstructure of the high alumina cement containing mortars did not deteriorate much at 1100°
C, as long as there was no change observed from the results.
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Kupcová, Zuzana. "Žáruvzdorné výrobky určené pro metalurgii hliníku." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226730.

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The master´s thesis focuses on high-alumina refractory materials used mainly in aluminia metallurgy. Teoretical part of this thesis is aimed at distribution of refractory materials, possibilities of its production and raw material basis. Characteristic properties are described as well as application possibilities in aluminium technology. In final part of this thesis experimental data are evaluated to obtain physical, mechanical, chemical properties of high-alumina refractory materials. Those are used for economical optimalization of raw materials.
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Books on the topic "High-alumina refractory materials"

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J, Skoch Gary, Wernet Judith H, and United States. National Aeronautics and Space Administration., eds. Demonstration of a stabilized alumina/ethanol colloidal dispersion technique for seeding high temperature air flows. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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J, Skoch Gary, Wernet Judith H, and United States. National Aeronautics and Space Administration., eds. Demonstration of a stabilized alumina/ethanol colloidal dispersion technique for seeding high temperature air flows. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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3

Parker, Philip M. The 2007-2012 World Outlook for Clay and High Alumina Refractory Materials Sold in Lump or Ground Form Either for Direct Use by Customer As a Finished Refractory Product or As Exported Material. ICON Group International, Inc., 2006.

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The 2006-2011 World Outlook for Clay and High Alumina Refractory Materials Sold in Lump or Ground Form Either for Direct Use by Customer As a Finished Refractory Product or As Exported Material. Icon Group International, Inc., 2005.

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The 2006-2011 World Outlook for Clay and High Alumina Refractory Raw Materials Sold in Lump or Ground Form Either for Direct Use by Customer As a Finished Refractory Product or As Exported Material. Icon Group International, Inc., 2005.

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6

Parker, Philip M. The 2007-2012 World Outlook for Clay and High Alumina Refractory Raw Materials Sold in Lump or Ground Form Either for Direct Use by Customer As a Finished Refractory Product or As Exported Material. ICON Group International, Inc., 2006.

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Book chapters on the topic "High-alumina refractory materials"

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Xu, Lei, and Min Chen. "Sintering and Performance of High Alumina Refractory with ZrO2Addition." In Characterization of Minerals, Metals, and Materials 2015, 503–7. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093404.ch62.

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Xu, Lei, and Min Chen. "Sintering and Performance of High Alumina Refractory with ZrO2 Addition." In Characterization of Minerals, Metals, and Materials 2015, 503–7. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48191-3_62.

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González Solórzano, María-Guadalupe, Rodolfo Morales-Dávila, Jafeth Rodríguez Ávila, Carlos Rodrigo Muñiz-Valdés, and Alfonso Nájera Bastida. "The Physical Chemistry of Steel Deoxidation and Nozzle Clogging in Continuous Casting." In Casting Processes and Modelling of Metallic Materials. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95369.

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Nozzle clogging in continuous casting of steel originates by the adherence of alumina particles and other oxides, precipitated during the liquid steel deoxidation, on the refractory material’s surface. Hence, these particles’ nucleation and growth rates in supersaturated melts are analyzed considering, specifically, the role of the interfacial tensions between alumina, silica, and other oxides and the liquid metal. Weak steel deoxidizers like silicon do not need high supersaturations favoring high nucleation rates, giving particles’ narrow size distributions thanks to fast diffusion and Ostwald-ripening coagulation. Strong deoxidizers, like aluminum, need high supersaturation levels leading to broad size distributions. Besides, the morphology of these particles depends on the nucleation and growth mechanisms. The adhesion forces among the deoxidation particles, forming clusters, depending on the morphology and the oxide’s chemistry. The stability of the nozzle’s clog, adhered to the nozzle’s wall, depends on the interface tensions between the melt and the nozzle’s refractory surface and between the melt and the inclusion. The results obtained here help set up basic recommendations in steel refining and materials specifications of casting nozzles.
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Conference papers on the topic "High-alumina refractory materials"

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Makarian, Kamran, and Sridhar Santhanam. "Finite Element Microstructural Analysis of Thermal Damage in High Volume Fraction RVE of Particle-Reinforced Refractory Composites." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-12040.

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Abstract Previously, we experimentally studied high-temperature behavior of three types of castable particle-reinforced ceramic composites that we designed for application in aerospace industry. These composites contain Zirconia particles (ZrO2) and bubbles, and silicon-carbide (SiC) particles as reinforcements, dispersed in an alumina (Al2O3) matrix. The present work aims to implement a Finite Element (FE) damage mechanics modeling approach based on the experimental results to investigate micro-scale mechanisms of failure in these materials and ascertain the effect of particle size and volume fraction (VF). Different mechanisms of failure are detected for different types of inclusions, and the percentage of yielded elements seem to strongly correlate with the theoretical thermal shock indices. Additionally, within the limits of this study, VF showed to have a positive correlation with the percentage of yielded elements, whereas inclusion size depicted an inverse correlation to that parameter. These novel findings shed new light on the micro-scale mechanisms of thermal failure in ceramic composites with complex microstructures.
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Miyamoto, M., T. Sakuta, and M. Tago. "Heating and Acceleration of Ceramic Particles in 20-kA Pulsed Plasma." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p1501.

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Abstract Plasma spraying is gradually becoming an important technique in the material processing field, if it would give additional value to the process by allowing the area and the thickness of the deposited film to be controlled. Plasma sources for heating and accelerating the high melting point (HMP) ceramic particles have been produced untiI now in a continuous D.C. plasma mode[l], [21 However, we would like to propose the application of a pulsed plasma produced with extremely large currents of tens of kA to plasma spraying. Our experiments were conducted with a specially developed plasma torch with a pulsed discharge current with a 24 kA peak and a 400 micro-second duration. The pulsed discharge current was provided by a capacitor bank with a maximum energy of 14 kJ. The simultaneous, in-fIight measurements[3] of particle temperature, velocity and size was carried out for alumina particles injected into the pulsed plasma. The results that we have obtained, showed that the surface temperature of the alumina particles reached 2,700 to 3,300 K which was considerably higher than the melting point of alumina. Particle velocity was found to be around 200 m/s which is comparable to particle velocity in the D.C. plasma mode. The details of the coating formed on the substrate with one shot of pulsed plasma were investigated with Scanning Electro-Microscopy(SEM). The experimental results have confirmed the applicability of pulsed plasma to the spraying of refractory materials.
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Zafred, Paolo R., Stephen W. Sofie, and Paul S. Gentile. "Progress in Understanding Silica Transport Process and Effects in Solid Oxide Fuel Cell Performance." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33297.

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One of the enabling technologies required for commercialization of high efficiency solid oxide fuel cell (SOFC) stacks is the development of low cost ceramic refractories capable of withstanding the harsh environment during start-up and steady state operation. Although low density, high purity fibrous alumina materials have been used for more than two decades in manufacturing of SOFC stack components, their low mechanical strength and high cost have precluded their use in the next generation pre-commercial generator modules. A current trend in SOFC stack design is to use high strength, low purity mullite bonded, cast ceramics which can be produced in large volume at a relatively low cost. Sufficient strength is required to provide structural support of the stack and its upper internals in addition to withstanding the severe thermal gradients in both steady state and transient conditions. To reduce costs while achieving suitable mechanical strength, thermal shock, and creep resistance, certain levels of silica and other impurities are present in the refractory ceramic. Silica, however, has been established to poison SOFC anodes thus degrading cell performance and stack life. Therefore, silica transport within the stack has become a dominant issue in SOFC generator design. As a result, an important design requirement for the stack ceramic materials is to develop a fundamental understanding of the silicon species transport process based on refractory composition and gas atmosphere in effort to minimize silicon species volatilization through the porous material. The vaporization behavior of the Al-Si-O system has been investigated in numerous studies and verified experimentally. It is well known that when aluminum silicate components are exposed to a reducing atmosphere, the partial pressure of oxygen is low, therefore this causes formation of volatile SiO(g). This SiO(g) gaseous phase is transported by the fuel stream to the anode/electrolyte interface and electrochemically oxidizes back into SiO2 over the triple phase boundaries (TPB) by the oxygen transported via the fuel cell. This re-deposition process of SiO2, known also as Si poisoning, blocks the reaction of fuel oxidation as it takes over the reactive sites, leading to noticeable degradation in cell performance. In this paper, the status of research on formation of volatile silicon species in aluminosilicate SOFC insulation materials is examined. The formation of volatile SiO(g), SiO(OH)(g), and SiO(OH)2(g) are indicated to facilitate silicon transport in anode fuel streams. Silica deposition is shown to degrade fuel cell anode performance utilizing a novel SOFC silicon poisoning test setup, and silica deposition is only observed on YSZ in the electrochemically active regions of the cell.
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