| Si3N4／纳米SiC复相陶瓷的研究 |
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| 引用本文： | 张伟儒,王长文.Si3N4／纳米SiC复相陶瓷的研究[J].硅酸盐通报,1998,17(1):4-9. |
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| 作者姓名： | 张伟儒 王长文 |
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| 作者单位： | [1]国家建材局山东工业陶瓷研究设计院 [2]武汉工业大学 |
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| 摘 要： | 采用纳米ＳｉＣ粉体制备了Ｓｉ３Ｎ４／纳米ＳｉＣｐ复相陶瓷。研究了制备工艺、纳米ＳｉＣ含量对材料性能及显微结构的影响，并对材料显微结构特点与强韧化机制进行了分析 。结果表明：添加２０ｖｏ％〈１００ｎｍ的ＳｉＣ粉体时，复相陶瓷的室温抗弯强度达８５６ＭＰａ，当添加１０ｖｏ％上述ＳｉＣ粉体时，复相陶瓷的增韧效果最佳，断裂韧性达８．２７ＭＰａｍ＾１／２，比基体材料提高了２３％。
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| 关 键 词： | 氮化硅 碳化硅 陶瓷 复合陶瓷 纳米级 |
Study on Si 3N 4/Nano SiC Particles Multiphase Ceramics |
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| Zhang Weiru,Gu Peizhi.Study on Si 3N 4/Nano SiC Particles Multiphase Ceramics[J].Bulletin of the Chinese Ceramic Society,1998,17(1):4-9. |
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| Authors: | Zhang Weiru Gu Peizhi |
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| Affiliation: | Zhang Weiru Gu Peizhi (Shandong R & D Institute of Industrial Ceramics) Wang Changwen (Wuhan University of Technology) |
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| Abstract: | Si 3N 4/nano SiC particles multiphase ceramics were prepared by using nano size SiC powders. The effects of manufacture process and SiC content on microstructure and mechanical properties were studied in detail. The microstructure characteristics and toughening mechanism were discussed. The results obtainted show that the maximum flexuel strength of this multiphase ceramics is 856 MPa by adding 20 vol% SiCp (<100nm), which is 22% higher than that of the matrix. The maximum fracture tougheness is 8.27MPam 1/2 by adding 10vol% SiCp (<100nm), which is 23% higher than that of the matrix. |
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| Keywords: | silicon nitride silicon carbide nano multiphase ceramics |
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