Development of tungsten-saving binderless hard materials
| Project/Area Number |
24560871
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Material processing/treatments
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| Research Institution | Akita University |
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Principal Investigator |
TAIMATSU Hitoshi 秋田大学, 工学(系)研究科(研究院), 教授 (60125721)
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| Co-Investigator(Kenkyū-buntansha) |
NINO Akihiro 秋田大学, 工学資源学研究科, 講師 (80451649)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | バインダーレス超硬合金 / 炭化タングステン / 炭化モリブデン / 炭化ケイ素 / 反応焼結 / 機械的性質 / 炭化クロム / 炭化バナジウム / 硬さ / ヤング率 / 破壊靭性値 / 硬質セラミックス / 炭化物セラミックス / 熱伝導度 / 通電加圧焼結 |
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| Outline of Final Research Achievements |
To develop tungsten reduced binderless cemented carbides, we determined synthesis conditions of dense WC-MoC ceramics by reactive resistance-heated hot pressing of WC, Mo2C and C powders, and then using the obtained information we examined compositions with good sintering and mechanical properties. WC-MoC ceramics was possible to be consolidated at 1700°C in the composition range of 5 to 30 mol% MoC. The addition of SiC provided dense ceramics including scarce residual Mo2C and C at lower sintering temperatures than without SiC. This good sinterability of WC-MoC-SiC enabled the preparation of dense ceramics by pressureless sintering at 1900°C.
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Report
(4 results)
Research Products
(6 results)
