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Preparation and Sintering of Macroporous Ceramic Membrane Support from Titania Sol‐Coated Alumina Powder
Author(s) -
Wang Yong Hong,
Cheng Ji Gui,
Liu Xing Qin,
Meng Guang Yao,
Ding Yan Wei
Publication year - 2008
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/j.1551-2916.2007.02207.x
Subject(s) - sintering , microstructure , materials science , ceramic , particle size , kinetics , activation energy , coating , chemical engineering , ceramic membrane , sol gel , particle (ecology) , composite material , nanotechnology , chemistry , physics , quantum mechanics , engineering , oceanography , geology
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.