Tribological Evaluation of an Al2O3-SiO2Ceramic Fiber Candidate for High Temperature Sliding Seals
作者:
Christopher Dellacorte,
Bruce Steinetz,
期刊:
Tribology Transactions
(Taylor Available online 1994)
卷期:
Volume 37,
issue 2
页码: 369-377
ISSN:1040-2004
年代: 1994
DOI:10.1080/10402009408983305
出版商: Taylor & Francis Group
关键词: Ceramics;Solid Lubricants;High Temperatures;Friction and Wear;Seals
数据来源: Taylor
摘要:
A test program to determine the relative slitting durability of an alumina-silica candidate ceramic fiber for high temperature sliding seal applications is described. Pin-on-disk tests were used to evaluate the potential seal material by sliding a tow or bundle of the candidate ceramic fiber against a superalloy test disk. Friction was measured during the tests and fiber wear, indicated h the extent of fibers broken in the tow or bundle, was measured at the end of each test. Test variables studied included ambient temperature from 25° to 900°C, loads from 1.3 to 21.2 N, and sliding velocities from 0.025 to 0.25 m/sec. In addition, the effects of fiber diameter and elastic modulus on friction and wear were measured. Thin gold films deposited on the superalloy disk surface were evaluated in an effort to reduce friction and wear of the fibers.
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