| C_f/SiC复合材料表面熔盐反应法锆金属化研究 |
| |
| 引用本文： | 梁赤勇,堵永国,张为军,郑晓慧,芦玉峰,周文渊.C_f/SiC复合材料表面熔盐反应法锆金属化研究[J].航空材料学报,2009,29(2). |
| |
| 作者姓名： | 梁赤勇 堵永国 张为军 郑晓慧 芦玉峰 周文渊 |
| |
| 作者单位： | 国防科技大学航天与材料工程学院,长沙,410073 |
| |
| 摘 要： | 利用熔盐热歧化反应在碳纤维增强碳化硅(Cf/siC)复合材料表面制备了锆金属化层.研究反应时间对金属化层形貌、物相、厚度的影响,分析SiC/Zr的界面反应机理.结果表明,锆金属化层优先在SiC区域生成,随着反应时间的延长,逐渐在C纤维区域生成,当反应时间达到3h时,金属化层覆盖完全;金属化层主要物相为Zr,Zr,O,ZrC和Zr2Si;金属化层的生成受固相中Zr,Si,C等元素扩散控制.
|
| 关 键 词： | Cf/SiC复合材料 熔盐 锆金属化层 反应时间 扩散 |
Study on Zirconium Metallic Coating for C_f/SiC Composites by Molten Salt Reaction |
| |
| LIANG Chi-yong,DU Yong-guo,ZHANG Wei-jun,ZHENG Xiao-hui,LU Yu-feng,ZHOU Wen-yuan.Study on Zirconium Metallic Coating for C_f/SiC Composites by Molten Salt Reaction[J].Journal of Aeronautical Materials,2009,29(2). |
| |
| Authors: | LIANG Chi-yong DU Yong-guo ZHANG Wei-jun ZHENG Xiao-hui LU Yu-feng ZHOU Wen-yuan |
| |
| Institution: | College of Aerospace and material Engineering;National University of Defense Technology;Changsha 410073;China |
| |
| Abstract: | Zirconium metallic coating was prepared on carbon fibre reinforced silicon carbide(Cf/SiC) composites by molten salt reaction method.The effects of reaction time on the morphology,phase composition and thickness of the metallic coatings on Cf/SiC composites were characterized by SEM and XRD.The interface reaction mechanism between SiC and Zr was investigated.The results show that the metallic coating is firstly deposited on the surface of SiC areas.With the increase of reaction time,the coating begins to de... |
| |
| Keywords: | Cf /SiC composites molten salt zirconium metallic coating reaction time diffusion |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
