| ZTA-SiCw-TiC复相陶瓷的制备和表征 |
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| 引用本文： | 程晋荣,许煜汾,孟中岩.ZTA-SiCw-TiC复相陶瓷的制备和表征[J].上海大学学报(英文版),2000,4(2). |
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| 作者姓名： | 程晋荣 许煜汾 孟中岩 |
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| 作者单位： | CHENG Jin rong 1，3，XU Yu fen 2 MENG Zhong yan 3 1. Department of Material Science，Shanghai Jiaotong University，Shanghai 200030，China 2. Hefei University of Technology，Hefei，Anhui Province 230009，China 3. School of Material Science an |
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| 基金项目： | theYoungScienceFoundationofShanghaiMunicipalCommissionofEducation!( 98QN5 5 ) |
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| 摘 要： | 1 Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｃｅｒａｍｉｃｍａｔｅｒｉａｌｓａｒｅｉｎｃｒｅａｓｉｎｇｌｙｕｔｉｌｉｚｅｄｉｎｓｔｒｕｃ ｔｕｒａｌａｐｐｌｉｃａｔｉｏｎｓｗｈｅｒｅｈａｒｓｈｅｎｖｉｒｏｎｍｅｎｔｉｓｅｎｃｏｕｎ ｔｅｒｅｄ .Ｔｈｅｉｒｌｏｗｄｅｎｓｉｔｙ ,ｈｉｇｈｈａｒｄｎｅｓｓ,ｔｈｅｒｍａｌｓｔａ ｂｉｌｉｔｙ,ａｎｄｃｏｒｒｏｓｉｏｎｒｅｓｉｓｔａｎｃｅｍａｋｅｔｈｅｍｔｏｐｌａｙａｎｉｍｐｏｒｔａｎｔｒｏｌｅｉｎｅｎｇｉｎｅｅｒｉｎｇａｐｐｌｉｃａｔｉｏｎｓ.Ｈｏｗｅｖｅｒ ,ｃｅｒａｍｉ…
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Study on the Fabrication and Characterization of ZTA-SiCw-TiC Polyphase Ceramics |
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| CHENG Jin-rong,XU Yu-fen,MENG Zhong-Yan.Study on the Fabrication and Characterization of ZTA-SiCw-TiC Polyphase Ceramics[J].Journal of Shanghai University(English Edition),2000,4(2). |
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| Authors: | CHENG Jin-rong XU Yu-fen MENG Zhong-Yan |
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| Abstract: | Novel ZTA/Al2O3-SiCw-TiC polyphase ceramics were fabricated by hot pressing techniques. Phase transformation toughening,particle dispersion and whisker reinforcement have obviously superposed strengthening and toughening effects. It is observed that ZTA20SiCw-20TiC has better comprehensive mechanical properties compared with Al2O3-20SiCw-20TiC. For the optimum processing, the density of ≥99.6 %. The tensile stress in matrix introduced by SiC whisker and TiC could be relaxed by the compress stress produced by tetragonal zirconia(ZrO2 (t)) transformation. TiC formed a continuous skeleton which prevented the grain growth of the matrix. The grain sizes of the matrix became finer with increasing TiC. The major fracture mode of the matrix was transcrystalline cleavage rupture. |
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| Keywords: | ZTA SiC w TiC hot pressing fracture toughness flexural strength |
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