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| 原位(TiB+TiC)/Ti复合材料中TiB/Ti界面的微结构研究 | |
| 引用本文： | 吕维洁,张小农,张荻,吴人洁,卞玉君,方平伟,H.Mori.原位(TiB+TiC)/Ti复合材料中TiB/Ti界面的微结构研究[J].电子显微学报,2001,20(1):56-62. |
| 作者姓名： | 吕维洁 张小农 张荻 吴人洁 卞玉君 方平伟 H.Mori |
| 作者单位： | 1. 上海交通大学 2. 上海钢铁研究所钛合金分所, 3. 日本大阪大学超高压电镜研究中心,日本大阪 |
| 基金项目： | 国家自然科学基金资助项目! (5 96 310 80 )，上海交通大学金属基复合材料国家重点实验室和上海市新材料开发中心联合资助项目 |
| 摘 要： | 本文利用透射电镜（TEM）和高分辨透射电镜（HRTEM）研究了利用钛与碳化硼之间的自蔓燃高温合成反应，经普通的熔炼工艺制备的（TiB TiC)/Ti复合材料中TiB晶须与钛界面的微观组织结构。结果发现：界面非常洁净，两侧晶体存在如下平行关系：010]TiB//011^-0]Ti,(100)TiB//(2^-110)Ti,(001)TiB//(0002)Ti和001]TiB//011^-0]Ti,(010)TiB//(2^-110)Ti,(200)TiB//(0002)Ti。利用凝固理论分析了TiB/Ti界面微结构的形成机制，较好地解释了原位（TiB TiC)/Ti复合材料中TiB/Ti界面结合较好的原因。 |
| 关 键 词： | 原位合成 钛基复合材料 界面 TiB 界面微结构 透射电镜 高分辨和透射电镜 自蔓燃高温合成 （TEM） （HRTEM） |
| 文章编号： | 1000-6281(2001)01-0056-07 |
Study on TiB/Ti interfacial microstructure of in situ synthesized (TiB+TiC)/Ti composite |
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| Lü Wei-jie,ZHANG Xiao-nong,ZHANG Di,WU Ren-jie,BIAN Yu-jun,FANG Ping-wei,H.Mori.Study on TiB/Ti interfacial microstructure of in situ synthesized (TiB+TiC)/Ti composite[J].Journal of Chinese Electron Microscopy Society,2001,20(1):56-62. | |
| Authors: | Lü Wei-jie ZHANG Xiao-nong ZHANG Di WU Ren-jie BIAN Yu-jun FANG Ping-wei HMori |
| Abstract: | A common casting technique has been applied to fabricate in situ synthesized (TiB+TiC)/Ti composite utilizing the self-propagation high-temperature synthe sis between Ti and B4C. The microstructure of TiB/Ti interface has been inve stigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution electron microscopy (HREM). The TiB/Ti interfaces we re atomically flat, sharp and free from any interfacial phase. TiB phase was wel l bonded with the matrix. The following consistent crystallographic orientation r e lationships between TiB and Ti have been observed by HREM, namely, ［010］Ti B//［0110］Ti,(100)TiB//(2110)Ti,(001)TiB// (0002)Ti and ［001］TiB//［0110］Ti,(010)TiB//(2110)T i,(200) TiB//(0002)Ti. The formation mechanism of TiB/Ti interfaces has been ana lyzed by solidification theory. The interfaces of TiB/Ti were formed during bina ry eutectic and ternary eutectic. |
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