| TiB2颗粒增强反应结合B4C陶瓷的显微结构与性能 |
| |
| 引用本文： | 林青青,董绍明,何 平,周海军,胡建宝. TiB2颗粒增强反应结合B4C陶瓷的显微结构与性能[J]. 无机材料学报, 2015, 30(6): 667-672. DOI: 10.15541/jim20140688 |
| |
| 作者姓名： | 林青青 董绍明 何 平 周海军 胡建宝 |
| |
| 作者单位： | (1. 中国科学院 上海硅酸盐研究所, 结构陶瓷与复合材料工程研究中心, 上海200050; 2. 中国科学院 上海硅酸盐研究所, 高性能陶瓷和超微结构国家重点实验室, 上海200050; 3. 中国科学院大学, 北京 100049) |
| |
| 摘 要： | 以微孔碳、颗粒级配碳化硼粉体、钛粉和硅粉为原料, 通过多孔预制体真空熔渗Si工艺制备了硼化钛颗粒增强的反应结合碳化硼复相陶瓷, 并通过X射线衍射、扫描电子显微镜、EDS能谱和透射电子显微镜对复合材料的显微结构进行表征。结果表明: 在预制体中钛为15wt%时, 所制备的复相陶瓷抗弯强度和断裂韧性分别为313 MPa和5.40 MPa•m1/2。原位反应生成的硼化钛对材料的增韧补强起到了积极的作用。
|
| 关 键 词： | 反应烧结碳化硼 微孔碳 钛 硼化钛 增韧补强 |
| 收稿时间： | 2014-12-31 |
Microstructure and Property of TiB2 Reinforced Reaction-bonded B4C Composites |
| |
| LIN Qing-Qing,DONG Shao-Ming,HE Ping,ZHOU Hai-Jun,HU Jian-Bao. Microstructure and Property of TiB2 Reinforced Reaction-bonded B4C Composites[J]. Journal of Inorganic Materials, 2015, 30(6): 667-672. DOI: 10.15541/jim20140688 |
| |
| Authors: | LIN Qing-Qing DONG Shao-Ming HE Ping ZHOU Hai-Jun HU Jian-Bao |
| |
| Affiliation: | (1. Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China) |
| |
| Abstract: | Dense B4C composites were fabricated by reaction bonding technique based on vacuum infiltration of silicon melt into green preforms made of microporous carbon, B4C and Ti powders. Phase assemblage and microstructure of the composites were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectrum (EDS) and transmission electron microscope (TEM). The flexural strength and fracture toughness of the composite with 15wt% Ti in its preform were 313 MPa and 5.40 MPa•m1/2, respectively. The in-situ generated TiB2 played a positive role in strengthening and toughening material. |
| |
| Keywords: | reaction bonded boron carbide microporous carbon Ti TiB2 toughening and strengthening |
|
| 点击此处可从《无机材料学报》浏览原始摘要信息 |
|
点击此处可从《无机材料学报》下载全文 |
|
