Preparation of Porous Diopside Microspheres from Spherical Silica Gels Impregnated with Ca(NO3)2 and MgCl2
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- NAKAMURA Yuhki K.
- Faculty of Engineering, Toin University of Yokohama
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- MURAKAMI Takurou N.
- Faculty of Engineering, Toin University of Yokohama
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- IWATA Noriyuki Y.
- Faculty of Engineering, Toin University of Yokohama
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- HIRANO Yoshiaki
- Faculty of Engineering, Toin University of Yokohama
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- TOKUOKA Yoshikazu
- Faculty of Engineering, Toin University of Yokohama
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- KAWASHIMA Norimichi
- Faculty of Engineering, Toin University of Yokohama Biomedical Engineering Center, Toin University of Yokohama
Bibliographic Information
- Other Title
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- Ca(NO<sub>3</sub>)<sub>2</sub> と MgCl<sub>2</sub> とを含浸した球状シリカゲルからの多孔質ディオプサイド微粒子の調製
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Description
Porous diopside microspheres, CaO·MgO·2SiO2, were prepared by heat treatment, at various temperatures, of spherical silica gel particles impregnated with Ca(NO3)2 and MgCl2. Spherical silica gel particles were prepared by the sol-gel method in an O/W emulsion using tetraethyl orthosilicate. When the silica gel particles containing Ca(NO3)2 and MgCl2 were heated at temperatures above 900°C, the results of X-ray powder diffractionmetry (XRD) and Fourier transform infrared spectroscopy (FT-IR) showed that the silica gels were crystallized into diopside, and scanning electron microscopy (SEM) observation revealed that a uniform porous structure was formed in the particles. The porosity in the diopside is believed to be caused by the mutual adhesion of smaller pores in the silica gel particles during the viscous sintering process.<br>
Journal
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 112 (1303), 133-137, 2004
The Ceramic Society of Japan
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Details 詳細情報について
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- CRID
- 1390282680226323712
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- NII Article ID
- 110002288178
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- NII Book ID
- AN10040326
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- ISSN
- 18821022
- 09145400
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- NDL BIB ID
- 6874752
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed