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Production and EDM of Si3N4-TiB2 ceramic composites
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UNSPECIFIED (2001) Production and EDM of Si3N4-TiB2 ceramic composites. BRITISH CERAMIC TRANSACTIONS, 100 (2). pp. 49-54. ISSN 0967-9782.
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Abstract
Ceramic matrix composites TiB2 as a particulate phase have been produced by not pressing. The problems of the reactivity of TiB2 with the Si3N4 matrix and with the sintering environment have been successfully addressed. A novel dual atmosphere sintering profile combined with low temperature hot pressing has been used to successfully produce fully dense materials. The effect of TiB2 addition on mechanical properties has been investigated. Composites containing TiB2 show significant improvements in hardness and fracture toughness. The addition of TiB2 at a level of 40 vol.-% raises the conductivity of the composite to a level where electro-discharge machining (EDM) is possible. A comprehensive study of the application of EDM has been carried out and the optimum machining conditions Si3N4-TiB2 composites have been shaped with relative ease and proved to be 'robust' materials under EDM.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TP Chemical technology | ||||
Journal or Publication Title: | BRITISH CERAMIC TRANSACTIONS | ||||
Publisher: | I O M COMMUNICATIONS LTD INST MATERIALS | ||||
ISSN: | 0967-9782 | ||||
Official Date: | 2001 | ||||
Dates: |
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Volume: | 100 | ||||
Number: | 2 | ||||
Number of Pages: | 6 | ||||
Page Range: | pp. 49-54 | ||||
Publication Status: | Published |
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