| Project/Area Number |
24655200
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic industrial materials
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
MIYAKAWA MASASHI 独立行政法人物質・材料研究機構, 超伝導物性ユニット, 主任研究員 (40552667)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | ベルト型高圧装置 / 高圧合成 / 圧力精密制御 |
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| Research Abstract |
Accuracy enhancements of generated pressures (<3.7 G Pa) in a belt-type high-pressure apparatus as well as reproducibility of generated pressure under temperature fluctuation of pressure members (anvil/cylinder, gasket etc) due to outside temperatures were examined. As a result, pressure error was reduced within ~0.2 G Pa, which was less than a half of that in a previous setup. Using this setup, replacements of Ca ions with Mg and Sr ions in calcium aluminum oxides with Mayenite-structure (C12A7) were examined. Mg-doped C12A7 crystals were not formed, but Sr-doped C12A7 were obtained and solid solutions of C12A7-S12A7 crystals were synthesized.
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