发明名称 |
METHOD FOR PRODUCING LAMINATED CERAMIC ARTICLE AND ARTICLE PRODUCED THEREBY |
摘要 |
Production of a layered ceramic product comprises positioning a first layer of a sinterable particulate ceramic material in face to face contact with a second layer of sinterable particulate ceramic material, sintering the particulate ceramic material and prior to effceting face to face contact, treating at least one of the surfaces to be positioned in face to face contact such that a zone of weakness (4a) is provided between the first (3a) and second layers (3b) of sinterable material. The zone of weakness in the ceramic product acts to deflect a crack (5) propagating across the layers of sintered material (3) along the zone of weakness thereby increasing the work required to break the product. The layered ceramic product may also have an improved fracture toughness when a crack (5) deflected along a zone of weakness (4a) does not propagate across an adjacent layer of sintered material from the tip of the crack in the zone of weakness. |
申请公布号 |
JPH06116051(A) |
申请公布日期 |
1994.04.26 |
申请号 |
JP19910017685 |
申请日期 |
1991.02.08 |
申请人 |
IMPERIAL CHEM IND PLC <ICI> |
发明人 |
UIRIAMU JIYON KURETSUGU;KEBIN KENDOORU |
分类号 |
B32B18/00;C04B35/64;C04B37/00;C04B41/87 |
主分类号 |
B32B18/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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