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Title: Method for sealing an oxygen transport membrane assembly

Abstract

An improved method of sealing a ceramic part to a solid part made of ceramic, metal, cermet or a ceramic coated metal is provided. The improved method includes placing a bond agent comprising an Al 2O 3 and SiO 2 based glass-ceramic material and organic binder material on adjoining surfaces of the ceramic part and the solid part. The assembly is heated to a first target temperature that removes or dissolves the organic binder material from the bond agent and the assembly is subjected to a second induction heating step at a temperature ramp rate of between about 100.degree. C. and 200.degree. C. per minute to temperatures where the glass-ceramic material flows and wets the interface between adjoining surfaces. The assembly is rapidly cooled at a cooling rate of about 140.degree. C. per minute or more to induce nucleation and re-crystallization of the glass-ceramic material to form a dense, durable and gas-tight seal.

Inventors:
;
Issue Date:
Research Org.:
Praxair Technology, Inc., Danbury, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1438381
Patent Number(s):
9,969,645
Application Number:
14/134,276
Assignee:
Praxair Technology, Inc. (Danbury, CT)
DOE Contract Number:  
FC26-07NT43088
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Dec 19
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Gonzalez, Javier E., and Grant, Arthur F. Method for sealing an oxygen transport membrane assembly. United States: N. p., 2018. Web.
Gonzalez, Javier E., & Grant, Arthur F. Method for sealing an oxygen transport membrane assembly. United States.
Gonzalez, Javier E., and Grant, Arthur F. Tue . "Method for sealing an oxygen transport membrane assembly". United States. https://www.osti.gov/servlets/purl/1438381.
@article{osti_1438381,
title = {Method for sealing an oxygen transport membrane assembly},
author = {Gonzalez, Javier E. and Grant, Arthur F.},
abstractNote = {An improved method of sealing a ceramic part to a solid part made of ceramic, metal, cermet or a ceramic coated metal is provided. The improved method includes placing a bond agent comprising an Al2O3 and SiO2 based glass-ceramic material and organic binder material on adjoining surfaces of the ceramic part and the solid part. The assembly is heated to a first target temperature that removes or dissolves the organic binder material from the bond agent and the assembly is subjected to a second induction heating step at a temperature ramp rate of between about 100.degree. C. and 200.degree. C. per minute to temperatures where the glass-ceramic material flows and wets the interface between adjoining surfaces. The assembly is rapidly cooled at a cooling rate of about 140.degree. C. per minute or more to induce nucleation and re-crystallization of the glass-ceramic material to form a dense, durable and gas-tight seal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {5}
}

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