CeO2掺杂MAS中间层对C/C-LAS接头性能的影响

doi:10.3724/SP.J.1077.2013.13051

无机材料学报 ›› 2013, Vol. 28 ›› Issue (12): 1345-1348.DOI: 10.3724/SP.J.1077.2013.13051 CSTR: 32189.14.SP.J.1077.2013.13051

CeO₂掺杂MAS中间层对C/C-LAS接头性能的影响

朱焕霞, 李克智, 卢锦花, 李贺军, 王建阳

(西北工业大学凝固技术国家重点实验室, 西安710072)

收稿日期:2013-01-22 修回日期:2013-03-26 出版日期:2013-12-20 网络出版日期:2013-11-15
作者简介:朱焕霞(1988-), 女, 硕士研究生. E-mail: zyxia777@163.com
基金资助:
“111”引智计划(B08040); 国家自然科学基金(51275417)

Effect of CeO₂ Modified MAS Middle Layer on the Joint of C/C-LAS

ZHU Huan-Xia, LI Ke-Zhi, LU Jin-Hua, LI He-Jun, WANG Jian-Yang

(State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072 , China)

Received:2013-01-22 Revised:2013-03-26 Published:2013-12-20 Online:2013-11-15
About author:ZHU Huan-Xia. E-mail: zyxia777@163.com
Supported by:
“111” Plan (B08040); National Natural Science Foundation of China (51275417

摘要/Abstract

摘要： 采用稀土CeO₂改性镁铝硅玻璃(MAS)作为中间层, 对碳/碳(C/C)复合材料和锂铝硅玻璃陶瓷(LAS)进行热压连接, 研究了稀土氧化物CeO₂的掺杂对连接接头性能的影响。利用扫描电子显微镜(SEM)、能谱(EDS)对稀土改性的MAS中间层、连接界面的形貌及成分进行分析, 利用万能试验机测试C/C-LAS连接接头的剪切强度。研究结果表明: 与未添加CeO₂改性的MAS中间层相比较, 改性后MAS中间层表面较致密, 孔洞缺陷少, MAS中间层的厚度约为150 μm, 未改性MAS中间层的厚度为50 μm; 稀土CeO₂改性后的连接接头平均剪切强度为25.37 MPa, 比未改性的连接接头强度提高约为30%。

关键词: C/C复合材料, MAS玻璃陶瓷, 稀土CeO₂, 连接接头

Abstract: The joints between C/C composites and lithium aluminosilicate (LAS) glass ceramic were prepared by hot pressing process method using magnesium aluminosilicate glass caremic (MAS) modified by rare earth oxide (CeO₂) as an intermediate layer. Morphology and ingredients of the MAS middlelayer and joints were analyzed by SEM and EDS. Shear strength of joints was examined through the INSTRON universal testing tensile machine. The results show that MAS middle layer surface is denser with less defects than with the middle layer without CeO₂. The thickness of MAS middlelayer modified by CeO₂ is about 150 μm, which of MAS middlelayer without CeO₂ is about 50 μm. The average shear strength of joints modified by CeO₂ is 25.37 MPa, which is 30% higher than that of the joints without CeO₂.

Key words: C/C composites, MAS glass ceramic, CeO₂, joint

中图分类号:

TB332

朱焕霞, 李克智, 卢锦花, 李贺军, 王建阳. CeO₂掺杂MAS中间层对C/C-LAS接头性能的影响[J]. 无机材料学报, 2013, 28(12): 1345-1348.

ZHU Huan-Xia, LI Ke-Zhi, LU Jin-Hua, LI He-Jun, WANG Jian-Yang. Effect of CeO₂ Modified MAS Middle Layer on the Joint of C/C-LAS[J]. Journal of Inorganic Materials, 2013, 28(12): 1345-1348.

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CeO₂掺杂MAS中间层对C/C-LAS接头性能的影响

Effect of CeO₂ Modified MAS Middle Layer on the Joint of C/C-LAS

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