| Project/Area Number |
22760553
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| Research Category |
Grant-in-Aid for Young Scientists (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 | Akita University |
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Principal Investigator |
NINO Akihiro 秋田大学, 工学資源学研究科, 助教 (80451649)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 炭化タングステン / 焼結 / 機械的性質 / 粒成長 / バインダーレス / 硬度 / 微細組織 |
|---|
| Research Abstract |
WC, WC-V_8C_7, and WC-Cr_3C_2 hard ceramics without a metallic binder were sintered densely using a resistance-heated hot-pressing machine. WC grain growth affecting mechanical properties was inhibited by the existence of the W_2C type phase. The hardness of the binderless WCs decreased with increasing average grain size. There is a good correlation between the hardness value and the average grain size. The mechanical property of dense binderless WCs was firmly controlled by the average grain size through controlled carbon amount.
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