One-step process for preparing reactive sintered ceramic material of silicon carbonate from pure carbon powder dispersed in water base


Application Number: 00114425
Application Date: 2000.03.15
Publication Number: 1264687
Publication Date: 2000.08.30
Priority Information:
International: C04B35/573
Applicant(s) Name: Wuhan Polytechnical Univ.
Address:
Inventor(s) Name: Wu Qide;Wei Mingkun;Wang Huaide
Patent Agency Code: 42102
Patent Agent: wang yuhua
Abstract A process for preparing high-performance reactive sintered ceramic of silicon carbide from pure carbon powder and waer as disperser includes adding additive to prepare high-dispersivity water-base slurry, pouring, extruding, gel shaping to obtain raw blank while regulating the distribution of pore sizes and carbon content by controlling the granularity of powder and the quantites of added ablating agent and filler, drying, and silicon-osmotic sintering at 1550-21650 deg.C under vacuum or 1850-2050 deg.C in argon atmosphere for 2 hrs.