Size effect of starting powder on liquid phase sintering and mechanical properties of SiC
| Project/Area Number |
18560657
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Kagoshima University |
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Principal Investigator |
HIRATA Yoshihiro Kagoshima University, 大学院・理工学研究科, 教授 (80145458)
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| Co-Investigator(Kenkyū-buntansha) |
SAMESHIMA Soichiro 鹿児島大学, 大学院・理工学研究科, 准教授 (00274861)
MATSUNAGA Naoki 鹿児島大学, 工学部, 助教 (40405543)
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| Project Period (FY) |
2006 – 2008
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| Project Status |
Completed (Fiscal Year 2008)
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| Budget Amount *help |
¥4,100,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥600,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2006: ¥1,500,000 (Direct Cost: ¥1,500,000)
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| Keywords | セラミックス / ナノ材料 / 炭化ケイ素 / 液相焼結 / 加圧焼結 / 強度 / 破壊靱性 / ワイブル係数 / 破壊靭性 |
|---|
| Research Abstract |
炭化ケイ素(SiC)セラミックスの力学特性向上のため、(1) 0.8μm SiC に30nm SiCを体積比で0, 5, 10, 15, 25 vol%混合した焼結体、(2) 焼結助剤(0.83-3.3 vol%)としてAl_2O_3-Yb_2O_3, Al_2O_3-Y_2O_3およびAl_2O_3-Gd_2O_3を加えたSiC焼結体を作製し、その力学特性の評価(強度、破壊靱性、ワイブル係数)を行った。SiCの合成プロセスの最適化を行うと、4点曲げ強度1 GPa、破壊靱性6.0 MPa・m^<1/2>、ワイブル係数11の高性能炭化ケイ素焼結体が得られた。
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Report
(4 results)
Research Products
(49 results)
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[Presentation] Processing of Silicon Carbide Composite with High Mechanical Properties2008
Author(s)
Y.Hirata, N.Matsunaga, S.Sameshima, R.Dong, X.H.Wang, N.Hidaka, S.Tabata, T.Maeda, Y.Kojo, T.Arima, M.Shibuya
Organizer
The 21st JSPS-KOSEF Core University Program Seminar between Japan and Korea
Place of Presentation
Awaji Yumebutai International Conference Center, Japan
Year and Date
2008-12-15
Related Report
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[Presentation] Joining of High Damage Tolerant SiC Fabric to High Strength SiC2008
Author(s)
Y.Hirata, N.Matsunaga, T.Arima, S.Sameshima
Organizer
Joint Conference of The 2nd International Conference on the Science and Technology for Advanced Ceramics and The 1st International Conference on Science and Technology of Solid Surface and Interface
Place of Presentation
OVTA, Japan
Year and Date
2008-05-31
Related Report
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[Presentation] Joining of High Damage Tolerant SiC Fabric to High Stringth SiC2008
Author(s)
Y. Hirata, N. Matsunaga, T. Arima, S. Sameshima
Organizer
Joint Confererence of The 2nd International Conference on the Science and Technology for Advanced Ceramics and The 1st International Conference on Science and Technolgy of Solid Surface and Interface
Place of Presentation
OVTA, Japan
Year and Date
2008-05-31
Related Report
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