Method for manufacturing ceramic components
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United States of America Patent
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Jul 8, 2014
Grant Date -
Oct 27, 2011
app pub date -
Aug 29, 2008
filing date -
Aug 29, 2008
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Abstract
The invention concerns a method for manufacturing a ceramic material with pseudo-isotropic microstructure. The method for tailoring the microstructure for manufacturing of sintered ceramic components involves a spark plasma sintering (SPS) process. By performing the SPS process in at least two steps it is possible to separate densification from grain growth. An initial sintering step at a first temperature and a first pressure, followed by a controlled grain growth step at a higher temperature and lower pressure makes it possible to manufacture ceramic components with controlled microstructure and improved mechanical properties.
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