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Synthesis of Mullite Whisker from Fly Ash
Journal of the Korean Ceramic Society, 2005In this study, we attempted to recycle the fly ash as a mullite whisker with addition of Al₂O₃ to obtain the high yield of mullite whisker. During the reaction process, mullite whisker was formed with the reaction of amorphous α-Cristobalite and Anorthite above 1350℃.
Sung-Hwan Kim +2 more
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Utilizing waste from photovoltaic for the synthesis of mullite whiskers via the molten salt method
Other ConferencesMelting salt was the method used in this work to produce mullite whiskers, employing industrial Si/SiC waste as a precursor. The goal of the study was to ascertain how temperature and the percentage of molten salt affected the development of mullite ...
Junyang Wang +5 more
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Permittivity and Permeability of Mullite‐SiC‐Whisker and Spinel‐SiC‐Whisker Composites
Journal of the American Ceramic Society, 1998Real and imaginary permittivity (ɛ′ and ɛ″, respectively) values were determined on mullite‐silicon carbide whisker (mullite‐SiC w ) composites, mullite‐ZrO 2 composites, and spinel‐SiC w composites, in the ...
Robert Ruh, Hirsch M. Chizever
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High temperature performance of mullite whisker-reinforced ZTA
Journal of Composite Materials, 2016In this work, an oxide-based ceramic matrix composite (CMC) consisting of a zirconia toughened alumina (ZTA) matrix and reinforced with mullite whiskers is produced with the purpose of providing more oxidation resistance and cost-effective alternative to covalent discontinuously reinforced ceramics.
Robertson, Taylor +2 more
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Research on Synthesis of Mullite Whiskers by Kyanite
Applied Mechanics and Materials, 2013In this paper, thermal barrier materials of mullite whiskers made by kyanite is studied, take -325~+400 mesh kyanite as raw material, the firing conditions is that nucleation temperature is 1150°C and crystallization temperature is 1250°C; the adding method of catalyst (AlF3) is external additive.
Ai Hong Guo +3 more
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Mullite whisker felt and its application in composites
Materials Science and Engineering: A, 1991Abstract The Naval Surface Warfare Center has developed a process for the in situ preparation of 80% porous mullite whisker felt which consists of randomly oriented whiskers mutually intergrown, forming a rigid structure. The felt can be used as pre-forms for the preparation of metal and ceramic matrix composites.
D. Haught +3 more
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Ceramics International, 2019
Abstract A novel mullite whisker-mullite/yttrium aluminosilicate coating was designed and prepared through a three-step process including molten salt, supersonic atmospheric plasma spraying and sol-hot dipping. The mullite whiskers were used to enhance the interface bonding between mullite and SiC layer.
Lei Zhou +5 more
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Abstract A novel mullite whisker-mullite/yttrium aluminosilicate coating was designed and prepared through a three-step process including molten salt, supersonic atmospheric plasma spraying and sol-hot dipping. The mullite whiskers were used to enhance the interface bonding between mullite and SiC layer.
Lei Zhou +5 more
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Effects of in situ synthesized mullite whiskers on compressive strength of mullite fiber brick
Ceramics International, 2016Abstract The method of in situ synthesis of mullite whiskers by gas-phase deposition and reaction was applied to improve the compressive strength of the mullite fiber brick. During the preparation process, silica sol, Al(NO 3 ) 3 solution and NH 4 F solution were introduced into the fibrous brick in the form of ions or sol through vacuum ...
Xin Wang +6 more
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Ceramics International, 2019
High-strength insulating ceramic materials were prepared using lightweight mullite microspheres with dense surfaces and high internal porosity as the main raw material and silica sol as a binder.
Yi Ping +4 more
semanticscholar +1 more source
High-strength insulating ceramic materials were prepared using lightweight mullite microspheres with dense surfaces and high internal porosity as the main raw material and silica sol as a binder.
Yi Ping +4 more
semanticscholar +1 more source
Oxidation behavior of SiC whisker reinforced mullite (−ZrO2) composites
Journal of the European Ceramic Society, 1989Abstract The oxidation behavior of hot-pressed 20 vol% SiC whisker-mullite matrix (with and without 10 vol% ZrO2) composites was investigated at 1000 and 1200°C in air for up to 100 h. The oxidation scales were examined by scanning electron microscopy and wavelength-dispersive X-ray analysis. The oxidation of both composites occurred slowly at 1000°C
H.Y. Liu +3 more
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