期刊
CERAMICS INTERNATIONAL
卷 40, 期 7, 页码 11299-11309出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.03.134
关键词
Sintering; alpha-alumina; Compaction load; Pore size
资金
- Council of Scientific and Industrial Research (CSIR), New Delhi, Government of India [22(0630)/13/EMR-II]
This work reports the effect of sintering temperature and compaction load on the quality of a-alumina (similar to particle size < 1 mu m) membrane support for dry compaction method. We analyzed the membrane synthesis process to get good quality membrane support in a more economical way by reducing the holding time (4 h) at different sintering temperatures. The effect of initial compaction load on porosity, pore size, flexural strength and shrinkage during synthesis of alpha-alumina support at various sintering temperatures was investigated. It was found that at 1500 degrees C sintering temperature and 350 IN compaction load, the support exhibited least porosity of similar to 1.4% and least pore sizes of 67 rim, whereas at 1200 degrees C and 50 kN compaction load, the support showed the highest porosity of similar to 55% and highest pore size of similar to 505 nm.Maximum flexural strength of similar to 200 MPa was obtained for the support synthesized at 1500 degrees C sintering temperature and 350 kN load. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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