| Project/Area Number |
04044033
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Joint Research |
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| Research Institution | Institute of Materials Science, University of Tsukuba |
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Principal Investigator |
WAKATSUKI Masao Instutute of Materials Science, University of Tsukuba, Professor, 物質工学系, 教授 (50114153)
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| Co-Investigator(Kenkyū-buntansha) |
洪 時明 成都科技大, 高温高圧物理研究所, 助教授
羅 湘捷 成都科技大, 高温高圧物理研究所, 助教授
丁 立業 成都科技大, 高温高圧物理研究所, 教授
〓 清泉 成都科技大, 高温高圧物理研究所, 教授
TOKUSHIGE Keinosuke Technology Administration Division, Ishikawajima-Harima Heavy Industries, Ltd.,, 技術本部, 課長
KAGI Hiroyuki Instutute of Materials Science, University of Tsukuba, Research Associate, 物質工学系, 助手 (70233666)
TAKANO Kaoru Instutute of Materials Science, University of Tsukuba, Associate Professor, 物質工学系, 助教授 (60133005)
OHSUKA Kazuhiro Instutute of Materials Science, University of Tsukuba, Professor, 物質工学系, 教授 (50029881)
SUENO Shigeho Instutute of Earth Science, University of Tsukuba, Professor, 地球科学系, 教授 (30110513)
HONG Shiming Instutute of High Temperature-High Pressure Physics, Chengdu University of Scien
LUO Xiaoxiao Instutute of High Temperature-High Pressure Physics, Chengdu University of Scien
DING Liye Instutute of High Temperature-High Pressure Physics, Chengdu University of Scien
GOU Qingquan Instutute of High Temperature-High Pressure Physics, Chengdu University of Scien
こう 清泉 成都科技大, 高温高圧物理研究所, 教授
奥田 重雄 筑波大学, 物質工学系, 教授 (50111365)
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| Project Period (FY) |
1992 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 1993: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1992: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | High pressure apparatus / Anvils / Pressure medium / Hydraulic pressure control / Heating power control / Pressure evaluation / Temperature evaluation / Diamond synthesis |
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| Research Abstract |
Researches in this subject were performed for two years, 1992 and 1993. Cubic anvils designed in Chengdu University of Science and Technology (CUST) were applied successfully to the cubic anvil-type high pressure-high temperature apparatus designed and installed in University of Tsukuba (TU). The CUST-type anvils are effective in the mechanical stability of confining pressure (avoiding the "blowout" accident), though with a need for improvement of the design to raise the pressure efficiency a little. The pressure medium designed and produced in CUST was better than that used in TU conventionally, in showing improved stability of pressure and temperature because of having less thermal transformation undesirable.
The apparatus of CUST, applied with pressure and heating power controlling units designed and supplied by TU, showed a very improved stability and reproducibility in pressures and temperatures. The CUST apparatus was manifested to be used successfully in experiments of growing seed crystals of diamond from a carbon source of graphite at a small excess pressure. This growth process requires a very stable pressure for a long growth term.
Those results show improvement in experimental ability of the both universities and make one expect further development of finer experiments based on the co-operative characters of the both-type apparatuses.
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