当前位置: X-MOL 学术J. Am. Ceram. Soc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Enhancement in sintering driving force derived from in situ ordered structural collapse of mesoporous powders
Journal of the American Ceramic Society ( IF 3.9 ) Pub Date : 2020-06-27 , DOI: 10.1111/jace.17343
Yuye Zhao 1, 2 , Sheng Sun 3 , Xuefan Cai 3 , Yuchi Fan 1 , Wan Jiang 1, 2, 4 , Beiying Zhou 1, 2 , Shijia Gu 2 , Nian Shi 1 , Wei Luo 1, 2 , Lianjun Wang 1, 2
Affiliation  

In this study, the sintering behaviors of a series of mesoporous silica (FDU‐12, SBA‐15, MCM‐41, and mesoporous silica nanoparticles) and microporous zeolite (ZSM‐5) using spark plasma sintering (SPS) technology were investigated. Highly transparent glass was prepared at a low temperature from all the powders. In particular, FDU‐12 type of mesoporous silica could be fully densified at an ultralow sintering temperature (910°C). It is suggested that the collapse of ordered mesostructures during SPS process dependents on the large pore size/pore wall thickness ratio, appropriate pore arrangement and amorphous frameworks of mesoporous silica, which implies that the enhancement in sinterability is possibly derived from the in situ collapse of ordered mesostructures. Such present findings pave a new way toward the construction of functional dense bulk materials from mesoporous powders.

中文翻译:

介孔粉末原位有序结构坍塌产生的烧结驱动力增强

在这项研究中,使用火花等离子体烧结(SPS)技术研究了一系列介孔二氧化硅(FDU-12,SBA-15,MCM-41和介孔二氧化硅纳米颗粒)和微孔沸石(ZSM-5)的烧结行为。由所有粉末在低温下制备高度透明的玻璃。特别是,FDU-12型介孔二氧化硅可以在超低烧结温度(910°C)下完全致密化。建议在SPS过程中有序介孔结构的崩塌取决于大孔径/孔壁厚度比,适当的孔排列和介孔二氧化硅的无定形骨架,这意味着可烧结性的增强可能源自于原位崩解。有序的介观结构。
更新日期:2020-08-10
down
wechat
bug