| Project/Area Number |
06650813
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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 |
Material processing/treatments
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| Research Institution | Seikei University |
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Principal Investigator |
OZAKI Yoshiharu Seikei univ.Engineering Professor, 工学部, 教授 (30054365)
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| Project Period (FY) |
1994 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1996: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1995: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1994: ¥800,000 (Direct Cost: ¥800,000)
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| Keywords | ceramic balloon / sol-gel / microcupsulation / alumina / セラミックス / 多孔質 / マイクロカプセル / ゾル |
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| Research Abstract |
The fabrication of alumina balloon using micro-capsulation methods has been investigated, and succeeded in making a transparent balloons of diameter of several 10mum which have a wall thickness of less than 1mum. The outline of the process is as follows ;
100g of 10% solution of polystirene in toluene and 5g of bohemite sol of about 1 mol/kg concentrations is measured into a 200ml beaker in the weight ratio of 20 : 1, and mixed by a homogeneizer. The resultant (W/O) emulsion is put in a large volume of water, and mixed a homogeneizer again. In gives bohemite sol encapsulated by polystirene in water. After keeping it for 2 days at 40ﾟC,filtrate, drying and firing, alumina balloons are obtained. The yield of alumina balloons increase if a polystirene crust is removed before firing.
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