Reduced metal content ceramic composite bodies
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United States of America Patent
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Jul 25, 1995
Grant Date -
N/A
app pub date -
Jan 11, 1993
filing date -
Jul 12, 1991
priority date (Note) -
Expired
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Abstract
This invention relates generally to a novel method for removing metal from a formed self-supporting body. A self-supporting body is made by reactively infiltrating a molten parent metal into a bed or mass containing a boron donor material and a carbon donor material (e.g., boron carbide) and/or a boron donor material and a nitrogen donor material (e.g., boron nitride) and, optionally, one or more inert fillers. Once the self-supporting body is formed, it is then subjected to appropriate conditions which causes metallic constituent contained in the self-supporting body to be at least partially removed.
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