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Enhancement in sintering driving force derived from in situ ordered structural collapse of mesoporous powders |
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| Authors: | Yuye Zhao Sheng Sun Xuefan Cai Yuchi Fan Wan Jiang Beiying Zhou Shijia Gu Nian Shi Wei Luo Lianjun Wang |
| Affiliation: | 1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, P. R. China
Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai, P. R. China;2. Materials Genome Institute, Shanghai University, Shanghai, China;3. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, P. R. China;4. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Donghua University, Shanghai, P. R. China Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai, P. R. China School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jindezhen, P. R. China;5. Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai, P. R. China |
| Abstract: | 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. |
| Keywords: | glass low temperature mesoporous silica spark plasma sintering |
