Process for production of ceramic porcelains, ceramic...

Compositions: ceramic – Ceramic compositions – Refractory

Reexamination Certificate

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C501S128000, C501S143000, C501S153000, C428S325000, C106S631000

Reexamination Certificate

active

07727920

ABSTRACT:
0.5 to 30 parts by weight of a hexagonal celsian powder is added to 100 parts by weight of a ceramic raw material powder to give a mixture. The mixture is sintered to give a ceramic porcelain so as to precipitate monoclinic celsian in the ceramic porcelain.

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patent: 2005-306714 (2005-11-01), None
Hwang et al. Silicon nitride ceramics with celsian as and additive. Journal of Materials Science 31 (1996) p. 150-156.
U.S. Appl. No. 12/204,006, filed Sep. 4, 2008, Hasegawa et al.

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