A Rigid Composite Structure with a Superhard Interior Surface
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United States of America Patent
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Issued Date -
Nov 8, 2007
app pub date -
May 4, 2006
filing date -
May 4, 2006
priority date (Note) -
Abandoned
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Abstract
A rigid composite structure has a first bore formed in a metallic material and a second bore formed by a super hard interior segment or segments disposed within the first bore. Each segment may be lined adjacent to one another and held under compression within the first bore. The segments may be made of super hard materials such as natural diamond, synthetic diamond, polycrystalline diamond, single crystalline diamond, cubic boron nitrate or other superhard composite materials which exhibit low thermal expansion rates and are generally chemically inert. The resultant rigid composite structure may possess higher tolerances to high pressures and high temperatures within the second bore.
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