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Sinterability Enhancement by Collapse of Mesoporous Structure of SBA ‐15 in Fabrication of Highly Transparent Silica Glass
Author(s) -
Zhang Xin,
Yu Xiangwen,
Zhou Beiying,
Luo Wei,
Jiang Wan,
Jiang Weihui,
Shen Zhijian,
Wang Lianjun
Publication year - 2015
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.13529
Subject(s) - materials science , spark plasma sintering , sintering , fabrication , mesoporous material , porosity , mesoporous silica , composite material , chemical engineering , chemistry , catalysis , medicine , biochemistry , alternative medicine , pathology , engineering
Highly transparent silica glass was prepared from mesoporous silica SBA ‐15 powders at low temperature using Spark Plasma Sintering. It was found that the combined effect of pressure and temperature resulted in collapse of porous structure of SBA ‐15 and transformation to transparent glass. A sinterability enhancement mechanism involving generation of incremental surface area from pore collapse during sintering process was proposed to interpret the fully densification at low temperature.