Molten Salt Synthesis of Mullite Whiskers from Silicon Carbide Precursor

Wei Wang; Gui Wu Liu; Guan Jun Qiao; Jian Feng Yang; Hong Wei Li; Ya Jie Guo

doi:10.4028/www.scientific.net/MSF.724.299

Paper Titles

Effects of Sintering Conditions and Additives on Translucent Silicon Nitride Ceramics
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The Dynamic Recrystallization of Hot-Deformed Austenite in a Micro-Alloyed Steel
p.287

Effect of Electromagnetic Stirring on the Microstructure and Mechanical Properties of the High Speed Steel
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Preparation and Performance of LiFePO₄/C Using Fe₂O₃ as Starting Material
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Molten Salt Synthesis of Mullite Whiskers from Silicon Carbide Precursor
p.299

Effect of Sintering Agents on the Sintering and Physical Properties of ATO (Antimony Doped Tin Oxide)
p.303

A Brief Review about Surface Treatment of Magnesium Alloys
p.307

Effects of Impregnating and Heat Treatment on the Oxidation and Thermal Shock Properties of Pressureless Sintered SiC/Graphite Composites
p.311

Synthesis of Layered-Ternary Ti₂AlC/Al₂O₃ Composites by an In Situ Reaction and Hot Pressing Sintering
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HomeMaterials Science ForumMaterials Science Forum Vol. 724Molten Salt Synthesis of Mullite Whiskers from...

Molten Salt Synthesis of Mullite Whiskers from Silicon Carbide Precursor

Abstract:

Mullite whiskers were prepared from SiC powders in molten Al₂(SO₄)₃-Na₂SO₄ mixture salts at different temperatures. The morphology and phase composition of resulting whiskers were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS) techniques. Mullite tiny fiber clusters with diameter about 50 nanometers and lengths of over several microns were obtained in 900°C mixture molten salts system. A new oxidation-dissolution mechanism was proposed for explanation mullite whiskers growth.

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Materials Science Forum (Volume 724)

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299-302

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.724.299

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Online since:

June 2012

Authors:

Wei Wang, Gui Wu Liu, Guan Jun Qiao, Jian Feng Yang, Hong Wei Li, Ya Jie Guo

Keywords:

Mechanism, Molten Salt Synthesis, Mullite, Whiskers

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