贵金属,
2012, 33(z1): 141-145.
WEI Yan
1,
, CHEN Li
2,
, CAI Hongzhong
3,
, ZHENG Xu
4,
, YANG Xiya
5,
, HU Changyi
6,
1.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China;Key Lab of Advanced Materials of Yunnan Province, Faculty of Materials and Engineering, Kunming University of Science and Technology, Kunming 650093, China
2.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
3.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
4.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
5.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
6.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
基金项目:
The project supported by National Natural Science Foundation of China(50771051)
the Natural Science Foundation of Yunnan,China(2003 PY10;2011FZ220)
Platinum-Iridium Alloy Films Prepared by MOCVD
WEI Yan
1,
, CHEN Li
2,
, CAI Hongzhong
3,
, ZHENG Xu
4,
, YANG Xiya
5,
, HU Changyi
6,
1.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China;Key Lab of Advanced Materials of Yunnan Province, Faculty of Materials and Engineering, Kunming University of Science and Technology, Kunming 650093, China
2.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
3.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
4.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
5.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
6.Yunnan Key Lab of Precious Metallic Materials, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
Keywords：
platinum-Iridium alloy
Platinum-Iridium alloy films were prepared by MOCVD on Mo substrate using metal-acetylacetonate precursors.Effects of deposition conditions on composition,microstructure and mechanical properties were determined.In these experimental conditions,the purities of films are high and more than 99.0％.The films are homogeneous and monophase solid solution of Pt and Ir.Weight percentage of platinum are much higher than iridium in the alloy.Lattice constant of the alloy changes with the platinum composition.Iridium composition showing an up-down-up trend at the precursor temperature of 190～230℃ and the deposition temperature at 400～550℃.The hardness of Pt-Ir alloys prepared by MOCVD is three times more than the alloys prepared by casting.
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