Process for producing layered ceramic product
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United States of America Patent
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Jan 7, 1997
Issued Date -
N/A
app pub date -
Sep 2, 1993
filing date -
Feb 9, 1990
priority date (Note) -
Expired
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Abstract
Process for producing a layered ceramic product which includes sintering layers of sinterable particulate ceramic material while in face-to-face contact. Before such contact, the surface of at least one of the layers is modified to provide a zone of weakness between the layers. This zone acts to deflect a crack propagating across the layers thereby increasing the work required to break the product. The product may also have improved fracture toughness.
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