Preparation of ThO2 sols suitable for gelation into microspheres in CCl4-ammonia media.
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概要
- 論文の詳細を見る
Production conditions of ThO<SUB>2</SUB> sols are studied for satisfactorily gelling them into micro-spheres in CCl<SUB>4</SUB>-ammonia media, which result gel-spheres with good sphericities but need high-quality source-sols for crackfree gelation. Two-stage pH-setting techniques were added to the previously reported method, which had been developed to produce ThO<SUB>2</SUB> sols suitable for gelation in hexone-ammonia media and was characterized by preneutralization followed by neutralization under pH-control. As a result, colloid fractions of Th in sols were increased without decreasing colloid size. This enabled one to obtain crackfree, large, spherical ThO<SUB>2</SUB> particles by gelation in the CCl<SUB>4</SUB>-ammonia media.
- 一般社団法人 日本原子力学会の論文
著者
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Takahashi Yoshihisa
Department Of Chemistry And Fuel Research Japan Atomic Energy Research Institute
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Yamagishi Shigeru
Department Of Chemistry And Fuel Research Japan Atomic Energy Research Institute
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TAKAHASHI Yoshihisa
Department of Fuels and Materials Research, Japan Atomic Energy Research Institute
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