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Preparation of Porous SiO_2 Ceramics by Gelcasting

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Porous SiO_2 ceramics had been successfully prepared by gelcasting. The open porosity of obtained samples was between 0.40 and 0.46, which reached its maximum at 1100℃. The change of line shrinkage rate was opposite to the open porosity. The microstructure was investigated though X-ray diffraction (XRD) and scanning electronic microscope (SEM).

porous SiO_2 ceramicsgelcastingopen porosityreactive process

Sha Li、Haiyan Du、Duo Yang、Jiping Guo、Di Song、Guiyan Li

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School of Materials Science and Engineering of Tianjin University, Key Lab of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin 300072, China

China Coal Pingshuo Industry Coal Corporation, Shanxi 036000, China

2010

Key engineering materials

Key engineering materials

ISSN:1013-9826
年,卷(期):2010.434/435
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