Study on phase transformation and microstructure development of Yb alpha-SiAlON ceramics prepared by pressureless sintering
authors Liu, GH; Chen, KX; Zhou, HP; Ferreira, JMF
editors Zhong, ZY; Saka, H; Kim, TH; Holm, EA; Han, YF; Xie, XS
nationality International
journal PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5
author keywords Yb alpha-SiAlON; pressureless sintering; phase transformation; microstructure
keywords CA
abstract In this paper, single-phase Yb alpha-SiAlON ceramics were prepared by pressureless sintering and the densification, phase transformation as well as microstructure development were studied. It was demonstrated that the phase transformation could be completed at 1700 degrees C and elevated temperature was beneficial to grain growth. Additionally, effect of the addition of seed crystals prepared by combustion synthesis was discussed. From the experimental results, it was found that the added seed crystals facilitated the phase transformation and improved the microstructure development, resulting in the formation of elongated grains.
publisher TRANS TECH PUBLICATIONS LTD
issn 0255-5476
isbn 0-87849-960-1
year published 2005
volume 475-479
beginning page 1271
ending page 1274
web of science category Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering
subject category Materials Science; Metallurgy & Metallurgical Engineering
unique article identifier WOS:000227494701097
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