Plural layered metal repair tape
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United States of America Patent
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Sep 14, 1999
Issued Date -
N/A
app pub date -
Aug 18, 1997
filing date -
Nov 4, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of forming a superalloy part comprises: forming a preform from tape, said tape comprising a base metal layer and a braze alloy layer, said base metal layer comprising fibrillated polytetrafluoroethylene and an oxygen-sensitive superalloy base metal powder selected from the group consisting of titanium, aluminum, hafnium, and chromium, and said braze alloy layer comprising fibrilated polytetrafluoroethylene and braze alloy; heating the preform in an hydrogen or vacuum environment. Another method of forming a superalloy part comprises using a tape comprising fibrilated polytetrafluoroethylene, said oxygen-sensitive superalloy base metal powder, and powdered braze alloy.
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