Method of making a holder of ceramic material
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United States of America Patent
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-
Jan 31, 1995
Grant Date -
N/A
app pub date -
Apr 29, 1992
filing date -
May 3, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention involves a method of making a holder of solid ceramic material by locating a core in a mass of particulate ceramic material, consolidating the particulate material around the core, removing the core from the particulate material to leave a green artifact having a cavity, and sintering the green artifact. The core is shaped and the particulate material is arranged such that the core is in the form of a thin slab between a pair of layers of the particulate material. After sintering, the cavity comprises a thin gap between opposed plates of sintered ceramic material. The slab has openings therethrough which are filled with the particulate material, which, after sintering, forms a bridge across the gap, between the associated plates and sintered thereto.
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