One piece shim
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United States of America Patent
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N/A
Issued Date -
Aug 24, 2006
app pub date -
Mar 2, 2004
filing date -
Mar 3, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A one-piece or otherwise unitary annular shim member made from a carbon material is used to maintain a space between stacked annular preforms during a manufacturing process, such as densification. The one-piece structure advantageously simplifies the arrangement of the preforms in a process chamber and causes less deformation in the preforms. The carbon composition also provides beneficial thermal effects that improve the densification process. A debonding coating is provided on the annular shim member in order to facilitate separation of the annular preforms from the shim members.
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