Sinterability Enhancement by Collapse of Mesoporous Structure of SBA-15 in Fabrication of Highly Transparent Silica Glass
Sinterability Enhancement by Collapse of Mesoporous Structure of SBA-15 in Fabrication of Highly Transparent Silica Glass
复制标题
通过 SBA-15 介孔结构的塌陷增强高透明石英玻璃制造中的可烧结性
DOI：
10.1111/jace.13529
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发表时间：
2015-04-01
影响因子：
3.9
通讯作者：
Wang, Lianjun
中科院分区：
文献类型：
--
作者：
Zhang, Xin;Yu, Xiangwen;Wang, Lianjun
以介孔氧化硅SBA-15粉体为原料，采用放电等离子体烧结法在低温下制备了高透明氧化硅玻璃。结果表明，在压力和温度的共同作用下，SBA-15的多孔结构坍塌并转变为透明玻璃。提出了一种烧结性增强机制，该机制涉及在烧结过程中孔隙塌陷产生的增量表面积来解释低温下的完全致密化。
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.