著者

下平 高次郎 広島 勉

出版者

一般社団法人 日本鉱物科学会

雑誌

鉱物学雜誌 (ISSN:04541146)

巻号頁・発行日

vol.14, no.Special2, pp.96-108, 1980-03-10 (Released:2009-08-11)

参考文献数

11

被引用文献数

1 1

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The Synthesis of Opalin Materials Takajiro Shimohira, Tsutomu Hiroshima: National Institute for Researches in Inorganic Materials, Sakura-mura, Niiharigun, Ibaraki Opalin materials which show some of the characteristics of natural precious opal have been synthesized. The process of making the materials was as follows;1) Monodispersed suspensions of spherical silica particles of colloidal size were produced by means of hydrolysis of ethyl silicate.2) An ordered close-packed array of hydrated silica particles has been achieved by sedimentation over a period of several months.3) Sintering and impregnation method were used to harden the arrays of stacked spheres.