| Preparation of the Preform of Pure Carbon Reaction Bonded Silicon Carbide by In-situ Consolidation Molding Method |
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| 作者姓名： | LIMei-juan WUQi-de JIXiao-li ZHANGLian-meng |
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| 作者单位： | Wuhan University |
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| 基金项目： | FundedbytheKeyResearchProjectofChina (96 A10 0 1 07)andtheKeyProjectofWuhanScienceandTechnologyCommit tee(2 0 0 0 10 0 10 0 3) |
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| 摘 要： | A new kind of in-situ ceramic eonsolidation molding process was imvestigated on the basis of the characteristics of stareh swelling in water and gelutinizing when heuted. The SiC ceramic snspension containing about 50wt% solids loading amt about 3wt% starch can be cast amt molded into various complex-shape SiC ceramic parts in a wuter-thermostat. The dry shrinkage of the green body was less than 1.0% when the solid volume fraction of SiC suspension was up to 52.5% . The density and pore size were homogeneously distributed insule the biscuits. Soaked with melt silicon in a vacuum are furnace, the biscuits were turn into SiC ceramic materiols with homogeneous structure and high performances.
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| 关 键 词： | 现场固化成型 淀粉 炭化硅 纯碳反应 |
Preparation of the Preform of Pure Carbon Reaction Bonded Silicon Carbide by In-situ Consolidation Molding Method |
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| LIMei-juan WUQi-de JIXiao-li ZHANGLian-meng.Preparation of the Preform of Pure Carbon Reaction Bonded Silicon Carbide by In-situ Consolidation Molding Method[J].Journal of Wuhan University of Technology. Materials Science Edition,2004,19(4):43-45,78. |
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| Authors: | LI Mei-juan WU Qi-de JI Xiao-li ZHANG Lian-meng Wuhan University of Technology |
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| Affiliation: | LI Mei-juan WU Qi-de JI Xiao-li ZHANG Lian-meng Wuhan University of Technology |
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| Abstract: | A new kind of in-situ ceramic consolidation molding process was investigated on the basis of the characteristics of starch swelling in water and gelatinizing when heated. The SiC ceramic suspension containing about 50vol% solids loading and about 3wt% starch can be cast and molded into various complex-shape SiC ceramic parts in a water-thermostat. The dry shrinkage of the green body was less than 1.0% when the solid volume fraction of SiC suspension was up to 52.5%. The density and pore size were homogeneously distributed inside the biscuits. Soaked with melt silicon in a vacuum arc furnace, the biscuits were turn into SiC ceramic materials with homogeneous structure and high performances. |
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| Keywords: | in-situ consolidation molding process starch SiC |
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