| 自蔓延高温合成/快速加压法制备二硼化钛陶瓷的致密化机理 |
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| 引用本文： | 孟范成,傅正义,张金咏,王为民,王皓,王玉成,张清杰.自蔓延高温合成/快速加压法制备二硼化钛陶瓷的致密化机理[J].硅酸盐学报,2007,35(4):430-434. |
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| 作者姓名： | 孟范成 傅正义 张金咏 王为民 王皓 王玉成 张清杰 |
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| 作者单位： | 武汉理工大学,材料复合新技术国家重点实验室,武汉,430070 |
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| 基金项目： | 教育部重大培育和创新团队基金
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教育部科学技术研究项目
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湖北省创新研究群体科学基金 |
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| 摘 要： | 用自蔓延高温合成/快速加压(self-propagating high temperacre synthesis/quick pressing,SHS/QP)法制备了 TiB2陶瓷.用扫描电镜及透射电镜观察陶瓷产品的微观形貌.对TiB2陶瓷致密化的动力学过程及结构形成过程进行了分析,并提出SHS/QP陶瓷烧结的致密化机理.结果表明:在SHS/QP过程中TiB2陶瓷的致密化是晶粒的重排及高温塑性变形共同作用的结果.
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| 关 键 词： | 致密化机理 二硼化钛 自蔓延高温合成/快速加压法 |
| 文章编号： | 0454-5648(2007)04-0430-05 |
| 修稿时间： | 09 21 2006 12:00AM |
DENSIFICATION MECHANISM OF TiB2 CERAMICS PREPARED BY THE SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS/QUICK PRESSING METHOD |
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| MENG Fancheng,FU Zhengyi,ZHANG Jinyong,WANG Weimin,WANG Hao,WANG Yucheng,ZHANG Qingjie.DENSIFICATION MECHANISM OF TiB2 CERAMICS PREPARED BY THE SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS/QUICK PRESSING METHOD[J].Journal of The Chinese Ceramic Society,2007,35(4):430-434. |
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| Authors: | MENG Fancheng FU Zhengyi ZHANG Jinyong WANG Weimin WANG Hao WANG Yucheng ZHANG Qingjie |
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| Affiliation: | State Key Lab oratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | Titanium diboride ceramics were prepared by the self-propagating high temperature synthesis/quick pressing (SHS/QP) method. The morphologies of the ceramics produced were characterized by scanning electron microscopy and transmission electron microscopy. The densification mechanism was discussed based on dynamic analysis of the densification process and experimental observations of the structure formation. The results indicate that both the re-arrangement and high-temperature plastic deformation of grains are operative during SHS/QP processing. |
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| Keywords: | densification mechanism titanium diboride self-propagating high temperature synthesis plus/pressing method |
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