| TiB_2含量对原位反应合成TiB_2/B_4C复合材料的组织结构和力学性能的影响(英文) |
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| 引用本文： | 王玉金,彭华新,叶枫,周玉. TiB_2含量对原位反应合成TiB_2/B_4C复合材料的组织结构和力学性能的影响(英文)[J]. 中国有色金属学会会刊, 2011, 0(Z2) |
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| 作者姓名： | 王玉金 彭华新 叶枫 周玉 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院特种陶瓷研究所;布里斯托大学工学院航空系先进复合材料创新与科学中心; |
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| 摘 要： | 以B4C,TiO2和石墨粉为原料,采用原位反应热压烧结工艺(2050℃,35MPa,1h)制备了致密的TiB2含量为10%～40%(体积分数)的TiB2/B4C复合材料,并对复合材料的组织结构和力学性能进行了研究。扫描电子显微镜和透射电子显微镜分析结果表明:在B4C晶内及晶界处均匀分布着纳米或亚微米级的TiB2颗粒,随着TiB2含量的增加,弹性模量和断裂韧性明显增大,而弹性模量和抗弯强度却随之减小。40%(体积分数)TiB2/B4C复合材料具有高的断裂韧性,高达8.2MPam1/2,主要增韧机制由微裂纹增韧和裂纹偏转增韧。
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| 关 键 词： | TiB2/B4C复合材料 原位反应 增韧机理 |
Effect of TiB_2 content on microstructure and mechanical properties of in-situ fabricated TiB_2/B_4C composites |
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| WANG Yu-jin ,,PENG Hua-xin ,YE Feng ,ZHOU Yu . Institute for Advanced Ceramics,School of Materials Science , Engineering,Harbin Institute of Technology,Harbin ,China,. Advanced Composites Centre for Innovation , Science . Effect of TiB_2 content on microstructure and mechanical properties of in-situ fabricated TiB_2/B_4C composites[J]. Transactions of Nonferrous Metals Society of China, 2011, 0(Z2) |
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| Authors: | WANG Yu-jin PENG Hua-xin YE Feng ZHOU Yu . Institute for Advanced Ceramics School of Materials Science Engineering Harbin Institute of Technology Harbin China . Advanced Composites Centre for Innovation Science |
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| Affiliation: | WANG Yu-jin 1,2,PENG Hua-xin 2,YE Feng 1,ZHOU Yu 1 1. Institute for Advanced Ceramics,School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China,2. Advanced Composites Centre for Innovation and Science (ACCIS),Department of Aerospace Engineering,Faculty of Engineering,University of Bristol,Queens Building,University Walk,Bristol BS8 1TR,UK |
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| Abstract: | |
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| Keywords: | TiB2/B4C composites in-situ reaction toughening mechanisms |
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