| Project/Area Number |
24656468
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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 |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Kyoto University |
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Principal Investigator |
TAMON Hajime 京都大学, 工学(系)研究科(研究院), 教授 (30111933)
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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: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 骨補填材 / 連通多孔構造 / 一方向凍結 / 焼成 / ヒドロキシアパタイト / リン酸三カルシウム / リン酸カルシウム系セラミ |
|---|
| Research Abstract |
Organic slurry containing hydroxyapatite (HAP) particles or tricalcium phosphate (TCP) particles was prepared. Then HAP or TCP monolith was synthesized by unidirectional freezing of the organic slurry, freeze-drying, and calcination in air. In the case where resorcinol-formaldehyde (RF) gel was used as organic slurry, the pore size and compressive strength of monolith are 0.1mm and 2.3MPa. However, the compressive strength was not enough for a practical use.
When t-butanol and polyvinylpyrrolidone were used as solvent and binder, it was possible to produce HAP or TCP monolith having pore size of more than 0.1mm and a compressive strength of more than 10MPa. In addition, a method controlling the porous structure of the monolith was proposed with the help of unidirectional freezing simulation.
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