Experimental and Analytical Study on Thermocracking of Alumina Ceramic Ring in a Mechanical Seal
作者:
M. Komiya,
K. Matsuda,
M. Kaneta,
期刊:
Tribology Transactions
(Taylor Available online 1994)
卷期:
Volume 37,
issue 2
页码: 245-252
ISSN:1040-2004
年代: 1994
DOI:10.1080/10402009408983289
出版商: Taylor & Francis Group
关键词: Mechanical Seals;Thermocracking;Alumina Ceramics
数据来源: Taylor
摘要:
A mechanism of thermocracking, which occurs in an alumina ceramic ring of a mechanical face seal, is proposed based on experimental and analytical results. Methods for its prevention are also discussed. The experiments were conducted using an external type mechanical face seal composed of a carbon ring and three kinds of alumina ceramic rings, with distilled water as the liquid to be sealed. By using a layer of gold vacuum deposited onto the surface of the ceramic ring as a part of a DC circuit, the moment of crack initiation was identified. The thermal stresses produced in the ceramic ring by frictional heating were calculated using finite element analysis.
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