| TiB-TiB_2陶瓷复合材料的放电等离子烧结致密化 |
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| 引用本文： | 张朝晖,罗杰,黄橙骋,王富耻,李树奎.TiB-TiB_2陶瓷复合材料的放电等离子烧结致密化[J].北京理工大学学报,2010,30(4):492-495. |
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| 作者姓名： | 张朝晖 罗杰 黄橙骋 王富耻 李树奎 |
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| 作者单位： | 北京理工大学,材料学院,北京,100081;北京理工大学,材料学院,北京,100081;北京理工大学,材料学院,北京,100081;北京理工大学,材料学院,北京,100081;北京理工大学,材料学院,北京,100081 |
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| 基金项目： | 国家部委基金资助项目 |
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| 摘 要： | 通过放电等离子烧结技术制备了新型的TiB-TiB2陶瓷复合材料,测试了复合材料的微观组织和力学性能,研究了复合材料微观组织的演化规律,揭示了复合材料的放电等离子烧结致密化机理.烧结前期,通过放电效应使Ti发生高温溅射,在TiB2颗粒间形成流线型丝状连接;随着温度的升高,TiB2颗粒与熔融的钛金属之间发生化学反应,生成的TiB呈棒状生长;烧结后期,随着烧结温度的提高,在焦耳热效应和烧结压力的共同作用下,塑性变形和固相扩散成为主要烧结机制,使复合材料迅速达到致密.
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| 关 键 词： | TiB-TiB2陶瓷复合材料 放电等离子烧结 致密化机理 |
| 收稿时间： | 2009/10/11 0:00:00 |
Densification Research of TiB-TiB2 Composites in Situ Synthesized by Spark Plasma Sintering |
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| ZHANG Zhao-hui,LUO Jie,HUANG Cheng-cheng,WANG Fu-chi and LI Shu-kui.Densification Research of TiB-TiB2 Composites in Situ Synthesized by Spark Plasma Sintering[J].Journal of Beijing Institute of Technology(Natural Science Edition),2010,30(4):492-495. |
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| Authors: | ZHANG Zhao-hui LUO Jie HUANG Cheng-cheng WANG Fu-chi and LI Shu-kui |
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| Affiliation: | School of Material Science and Engineering, Beijing Institute of Technology, Bejing 100081, China;School of Material Science and Engineering, Beijing Institute of Technology, Bejing 100081, China;School of Material Science and Engineering, Beijing Institute of Technology, Bejing 100081, China;School of Material Science and Engineering, Beijing Institute of Technology, Bejing 100081, China;School of Material Science and Engineering, Beijing Institute of Technology, Bejing 100081, China |
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| Abstract: | |
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| Keywords: | TiB-TiB2 ceramic composites spark plasma sintering densification mechanism |
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