Multilayer compressive seal for sealing in high temperature devices
Abstract
A mica based compressive seal has been developed exhibiting superior thermal cycle stability when compared to other compressive seals known in the art. The seal is composed of compliant glass or metal interlayers and a sealing (gasket) member layer composed of mica that is infiltrated with a glass forming material, which effectively reduces leaks within the seal. The compressive seal shows approximately a 100-fold reduction in leak rates compared with previously developed hybrid seals after from 10 to about 40 thermal cycles under a compressive stress of from 50 psi to 100 psi at temperatures in the range from 600.degree. C. to about 850.degree. C.
- Inventors:
-
- Richland, WA
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 913427
- Patent Number(s):
- 7258942
- Application Number:
- 10/656,300
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Chou, Yeong-Shyung, and Stevenson, Jeffry W. Multilayer compressive seal for sealing in high temperature devices. United States: N. p., 2007.
Web.
Chou, Yeong-Shyung, & Stevenson, Jeffry W. Multilayer compressive seal for sealing in high temperature devices. United States.
Chou, Yeong-Shyung, and Stevenson, Jeffry W. Tue .
"Multilayer compressive seal for sealing in high temperature devices". United States. https://www.osti.gov/servlets/purl/913427.
@article{osti_913427,
title = {Multilayer compressive seal for sealing in high temperature devices},
author = {Chou, Yeong-Shyung and Stevenson, Jeffry W},
abstractNote = {A mica based compressive seal has been developed exhibiting superior thermal cycle stability when compared to other compressive seals known in the art. The seal is composed of compliant glass or metal interlayers and a sealing (gasket) member layer composed of mica that is infiltrated with a glass forming material, which effectively reduces leaks within the seal. The compressive seal shows approximately a 100-fold reduction in leak rates compared with previously developed hybrid seals after from 10 to about 40 thermal cycles under a compressive stress of from 50 psi to 100 psi at temperatures in the range from 600.degree. C. to about 850.degree. C.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 21 00:00:00 EDT 2007},
month = {Tue Aug 21 00:00:00 EDT 2007}
}
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Works referenced in this record:
Ultra-low leak rate of hybrid compressive mica seals for solid oxide fuel cells
journal, October 2002
- Chou, Y.
- Journal of Power Sources, Vol. 112, Issue 1
Compressive mica seals for SOFC applications
journal, December 2001
- Simner, Steven P.; Stevenson, Jeffry W.
- Journal of Power Sources, Vol. 102, Issue 1-2
Thermal cycling and degradation mechanisms of compressive mica-based seals for solid oxide fuel cells
journal, November 2002
- Chou, Yeong-shyung; Stevenson, Jeffry W.
- Journal of Power Sources, Vol. 112, Issue 2
Mid-term stability of novel mica-based compressive seals for solid oxide fuel cells
journal, April 2003
- Chou, Y.
- Journal of Power Sources, Vol. 115, Issue 2