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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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