Brazing methods using porous interlayers and related articles
The disclosure relates to a brazing method for joining substrates, in particular where one of the substrates is difficult to wet with molten braze material. The method includes formation of a porous metal layer on a first substrate to assist wetting of the first substrate with a molten braze metal, which in turn permits joining of the first substrate with a second substrate via a braze metal later in an assembled brazed joint. Ceramic substrates can be particularly difficult to wet with molten braze metals, and the disclosed method can be used to join a ceramic substrate to another substrate. The brazed joint can be incorporated into a solid-oxide fuel cell, for example as a stack component thereof, in particular when the first substrate is a ceramic substrate and the joined substrate is a metallic substrate.
- Research Organization:
- Michigan State Univ., East Lansing, MI (United States); Delphi Technologies, LLC, Troy, MI (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FE0023315
- Assignee:
- Board of Trustees of Michigan State University (East Lansing, MI); Delphi Technologies, LLC (Troy, MI)
- Patent Number(s):
- 11,167,363
- Application Number:
- 15/975,318
- OSTI ID:
- 1860040
- Country of Publication:
- United States
- Language:
- English
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