Study on preparation and oxidation properties of Mo5Si3-Al2O3 composites
ZHANG Hong-xia1，CHEN Li1，CHEN Hui2
1. School of Materials Engineering， Xinxiang Vocational and Technical College， Xinxiang 453006， China 2. School of Materials Science and Engineering， Liaocheng University， Liaocheng 252000， China
Abstract：Mo5Si3-Al2O3 composite was prepared by mechano-chemical reduction method and consolidated by hot pressing. The oxidation behavior of the composites at 600 ℃ was investigated. The results show that nano-scale Mo5Si3-Al2O3 composite is synthesized with MoO3， Mo， Si and Al powders as starting materials by mechanical milling for 10 h. The relative density and hardness of the Mo5Si3-Al2O3 composite reach 97.2% and 1 350 HV， respectively， higher than pure Mo5Si3. The addition of Al2O3 in the Mo5Si3 can effectively restrain its pest oxidation. Compared with Mo5Si3 alloy， the oxidation resistances of Mo5Si3-Al2O3 composite is remarkably improved and the oxidation behavior of the composite exhibits a similar parabolic law.
收稿日期: 2015-08-04
出版日期: 2016-06-12
基金资助:山东省自然科学基金项目;聊城大学博士启动基金项目
通讯作者:
陈辉
E-mail: chenhui002@qq.com
引用本文:
张红霞，陈 莉，陈 辉. Mo5Si3-Al2O3复合材料的制备及抗氧化性能研究[J]. , 2016, 26(03): 55-59.
ZHANG Hong-xia，CHEN Li，CHEN Hui. Study on preparation and oxidation properties of Mo5Si3-Al2O3 composites. , 2016, 26(03): 55-59.
2016, Vol. 26 
