Preparation and Sintering of Macroporous Ceramic Membrane Support from Titania Sol-Coated Alumina Powder期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Preparation and Sintering of Macroporous Ceramic Membrane Support from Titania Sol-Coated Alumina Powder

Authors:	Yong Hong Wang Ji Gui Cheng Xing Qin Liu Guang Yao Meng Yan Wei Ding

Affiliation:	School of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui 230009 China; Department of Materials Science and Engineering, University of Science &Technology of China, Hefei, Anhui 230026 China; Hefei National Laboratory for Physical Sciences at Microscale, Structure Research Laboratory, University of Science &Technology of China, Hefei, Anhui 230026 China

Abstract:	The preparation of ceramic support at relatively low sintering temperature of 1350°–1500°C was investigated with a powder processing route, namely, titania sol coated on coarse alumina powder (median particle size d ₅₀, 27.5 μm). The sintering kinetics analysis indicates that the microstructure control of support is closely related to the sol coating and the sintering conditions. The mechanisms of sintering process were discussed in detail with the corresponding kinetics parameter, i.e., activation energy E _a and exponent n as well as the microstructure characterization. The prepared support provides practical applications with tunable pore size and desired mechanical strength.

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