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Microstructure and phase composition of iridium coating on molybdenum after heat treatment at 1400°C

  • Wang Ping Wu
  • , Zhao Feng Chen
  • , Xin Lin
  • Nanjing University of Aeronautics and Astronautics

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

7 引用 (Scopus)

摘要

Iridium (Ir) could be taken as high temperature protective coating for the refractory metals. Ir coating was deposited on the surface of molybdenum (Mo) substrate by double glow plasma. Thermal stability of the coating was investigated at 1400°C for 90 min, while Ar gas was inputted to hold the vacuum pressure. The microstructure of the surface and interface of the Ir coating were observed by SEM and TEM. The phase transition of the coating was determined by X-ray diffraction. Many micropores and microbubbles appeared in the surface of the as-heat treated coating. The interfacial reaction between the Mo substrate and Ir coating occurred during heat treatment, and Ir21.5Mo8.5 phase was formed at 1400°C. The experimental results indicated that the integrity of the Ir coating was not degraded after heat treatment.

源语言英语
主期刊名Manufacturing Process Technology
页688-691
页数4
DOI
出版状态已出版 - 2011
活动2nd International Conference on Manufacturing Science and Engineering, ICMSE 2011 - Guilin, 中国
期限: 9 4月 2011 → 11 4月 2011

丛书

姓名Advanced Materials Research
卷189-193
ISSN(印刷版)1022-6680

会议

会议2nd International Conference on Manufacturing Science and Engineering, ICMSE 2011
国家/地区中国
市Guilin
时期9/04/11 → 11/04/11

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