Fibers fabricated with metals incorporated into grain boundaries for high temperature applications
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United States of America Patent
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Oct 18, 2022
Grant Date -
Dec 17, 2020
app pub date -
Aug 24, 2020
filing date -
Jun 2, 2017
priority date (Note) -
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Abstract
A fiber comprises a bulk material comprising: one or more of carbon, silicon, boron, silicon carbide, and boron nitride; and a metal or metal alloy whose affinity for oxygen is greater than that of the bulk material. At least a first portion of the metal or metal alloy is present at the entrance to grain boundaries at the surface of the fiber and within the fiber to a depth of at least 1 micron from the fiber surface.
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