Results 91 to 100 of about 19,814 (230)
Journal of Materials Research and TechnologyCatalyzed by MoO3, mullite whiskers were synthesized through a molten salt method. This study comprehensively explored the impact of reaction temperature, MoO3 mass fraction, and calcination temperature on the morphology of mullite whiskers.
Xiaohua Gu +7 more
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The Feasibility of Reclaiming Shell Material from Investment Casting [PDF]
, 1992 This report examines the feasibility of investment shell component reclamation. Shell material components and their compositions are investigated with an industry survey, a study of the available literature, and analysis of specimen shell materials ...
Peters, Timothy M., Twarog, Daniel L.
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Effect of hydrogen on the strength and microstructure of selected ceramics [PDF]
Ceramics in monolithic form and as composite constituents in the form of fibers, matrices, and coatings are currently being considered for a variety of high-temperature applications in aeronautics and space. Many of these applications involve exposure to
Eckel, Andrew J. +3 more
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Influence of Thermal Treatment on Kankara Kaolinite [PDF]
, 2013 In this work, the influence of thermal treatment on the structure of Kankara kaolinite was studied for the first time, using X-ray diffractogram (XRD), EDX, NanoSEM, FTIR-Attenuated Total Reflectance, DTA/TGA and BET surface area measurements.
Aderemi, BO +4 more
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Production of mullite fibers [PDF]
Disclosed here is a process for making mullite fibers wherein a hydrolizable silicon compound and an aluminum compound in the form of a difunctional aluminum chelate are hydrolized to form sols using water and an alcohol with a catalytic amount of ...
Sparks, J. Scott, Tucker, Dennis S.
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High-temperature durability considerations for HSCT combustor [PDF]
The novel combustor designs for the High Speed Civil Transport will require high temperature materials with long term environmental stability. Higher liner temperatures than in conventional combustors and the need for reduced weight necessitates the use ...
Jacobson, Nathan S.
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Silicon-on ceramic process: Silicon sheet growth and device development for the large-area silicon sheet task of the low-cost solar array project [PDF]
The technical feasibility of producing solar-cell-quality sheet silicon to meet the Department of Energy (DOE) 1986 overall price goal of $0.70/watt was investigated. With the silicon-on-ceramic (SOC) approach, a low-cost ceramic substrate is coated with
Grung, B. L. +4 more
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Compatibility Studies of Various Refractory Materials in Contact with Molten Silicon [PDF]
The production of low cost, efficient solar cells for terrestrial electric power generation involves the manipulation of molten silicon with a present need for noncontaminating, high temperature refractories to be used as containment vessels, ribbon ...
Hagan, M., Leipold, M. H., Odonnell, T.
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Effect of Fe2O3 on Compressive Strength and Microstructure of Porous Acicular Mullite
CeramicsPorous acicular mullite was fabricated at 1300 °C starting from Al2O3 and mixture of SiO2 and MoO3 obtained by previous oxidation of waste MoSi2. It was found that the presence of MoO3 favors formation of acicular (prism-like) mullite grains with sharp ...
Mia Omerašević +4 more
doaj +1 more source
Cooling slope casting to obtain thixotropic feedstock [PDF]
, 2007 Thixoforming, and related semi-solid processing routes for metallic alloys, require feedstock with a non-dendritic microstructure in the semi-solid state.
Atkinson, H.V. +2 more
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