| Project/Area Number |
06555210
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Material processing/treatments
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| Research Institution | Osaka University |
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Principal Investigator |
NOGI Kiyoshi Welding Research Institute Osaka University Professor, 溶接工学研究所・化学反応部門, 教授 (40029335)
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| Co-Investigator(Kenkyū-buntansha) |
NAITOH Makio Japan Fine Ceramics Center Manager, 主任研究員
YOKOYAMA Toyakazu Hosokawa Micron Corporation Sinior Derector, 粉体工学研究所, 研究所長
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥6,700,000 (Direct Cost: ¥6,700,000)
Fiscal Year 1995: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1994: ¥5,500,000 (Direct Cost: ¥5,500,000)
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| Keywords | Theermal Spray Coating / Composite Powder / Mechano-Chemical Reaction / Molybdenum Silicide / 熱電材料 / 温度評価 |
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| Research Abstract |
Mo-Si Composite powder was fabricated by mechano-chemical reaction and its thermal spray characteristics was elucidated. Main results were as follws :
(1) About 50% of MoSi_2 can be formed by thermal spraying using Mo-Si composite powder.
(2) It is possible to obtain perfect film which composed of 100% MoSi_2 by heat treatment after thermal spraying.
(3) Mechanical property of thermal spray coating film obtained by composite powder is almost the same as that by MoSi_2 powder.
(4) Reactivity of composite powder can be improved by adding smsll amout of carbon powder.
The improvement of reactivity by carbon addition can be attributed to a decrease of oxide layr at the surface of particles, which is caused a CO formation reaction.
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