ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The colloidal forming is an important process to prepare complex-shaped parts of ceramics,especially for industrialization of structure ceramics. It has been paid widely attention to by ceramicscientists, industries and governments in the past three decades. In 90’s, because the homogeneous greenbodies were prepared using colloidal ways, many new colloidal forming processes were developedcontinuously such as gelcasting, DCC, TIF, colloidal vibration casting, colloidal injection moulding,HAS, and so on.. However, crackings of sintered bodies from colloidal ways have also often beenoccurred, especially for large size and solid parts of ceramics. In this paper, some important views aboutshrinkages from colloidal forming were discussed. The internal stresses in green bodies to prepare usingcolloidal forming resulted from the shrinkage of suspension during from liquid to solid. The shrinkage ledto different cracks during sintering and/or debindering. Finally, it is put forward that the shrinkage fromliquid to solid in colloidal froming have to be regarded in the future
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.2378.pdf
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