DRYING OF FINE CERAMICS
作者:
S. Asami,
期刊:
Drying Technology
(Taylor Available online 1993)
卷期:
Volume 11,
issue 4
页码: 733-747
ISSN:0737-3937
年代: 1993
DOI:10.1080/07373939308916861
出版商: Taylor & Francis Group
关键词: defect;dewaxing;dielectric drying;electric current drying;freeze drying;shrinkage;supercritical dewaxing
数据来源: Taylor
摘要:
The drying mechanism of shaped ceramics is reviewed and some methods for eliminating defects produced by drying are discussed in this report. The types of defects depend upon the shaping method, shape, properties of the raw materials, drying process and other items. Most defects of dried ceramics are produced during the initial or middle drying stage when large shrinkage of the ceramic body occurs. These defects may be successfully eliminated by heating the body from the inside. Self-deformation caused by weight is also a serious defect. The near net shaping of fine ceramics to reduce machining requires uniform body shrinkage and hence, highly controlled drying. Examples of electric current drying, dielectric drying, and dewaxing are also shown in this report.
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