Title: Method for preparing single-phase compact silicon titanium carbid block body material by using Al as adjuvant through hot-pressing reaction in situ
Application Number: 03128181 Application Date: 2003.06.20
Publication Number: 1460658 Publication Date: 2003.12.10
Approval Pub. Date: Granted Pub. Date: 2004.12.15
International Classifi-cation: C04B35/515,C04B35/56,C04B35/645
Applicant(s) Name: Wuhan Univ. of Technology Address: 430070
Inventor(s) Name: Zhu Jiaoqun, Mei Bingchu
Attorney & Agent: zhang anguo
Abstract:
     The invented method uses TiC, Ti, Si and Al as raw material, their mole ratio is as follows: TiC:Ti:Si:Al=2:1:(0.95-1.05):(0.15-0.25). After all the raw materials are mixed uniformly, they are sintered in heat-pressing furnace with Ar atmosphere, its sintering temp. is 1200-1500 deg.c, heat-insulating time is 1-8 hr., and the pressure is 20-80 MPa. The Ti3SiC2 content in the prepared product is high, and can be up to 98 wt%, its material compactness is greater than 99%, and its compression strength is up to 800 MPa, and its three-point bending strength sigma b is greater than or equal to 420 MPa.
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