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Volume 6
Research & Reviews: Journal of Material Sciences
ISSN: 2321-6212
Ceramics 2018
May 14-15, 2018
May 14-15, 2018 | Rome, Italy
4
th
International Conference and Expo on
Ceramics and Composite Materials
Preparation of zirconium-based porous ultra-high temperature ceramics via sol-gel precursors
Xiao Huang
Shanghai Institute of Ceramics, Chinese Academy of Sciences, China
U
ltra high temperature ceramics (UHTCs) are a class of inorganic materials that have melting point over 3000 °C and are
typically borides, carbides and nitrides of early transition metals. UHTCs are considered as the promising candidate
used in the extreme environment involved with the hypersonic aviation thermal protective system. Synthesis of UHTC based
materials can be divided into solid based and solution based protocols according to the state of the raw materials. Sol-gel
process is one of the solution based protocols for the preparation of UHTC based materials, which involves the hydrolysis,
condensation of the metal organic and/or metal inorganic compounds, gelation and the post high temperature treatment of
the dried gels. Here, we present the preparation of several zirconium-based porous UHTCs. The formation and manipulation
of the pore structure and the correlation to their properties are also discussed.
xiaohuang@mail.sic.ac.cnXiao Huang, Res. Rev. J Mat. Sci. 2018, Volume 6
DOI: 10.4172/2321-6212-C1-014