Bimodal Sintering of Al2O3/Al2O3 Platelet Ceramic Composites |
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| Authors: | Manuel Belmonte Jose S Moya Pilar Miranzo |
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| Affiliation: | Instituto de Cerámica y Vidrio, CSIC, Arganda del Key, 28500 Madrid, Spain |
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| Abstract: | The sintering behavior of an Al2O3 compact containing uniformly dispersed Al2O3 platelets has been investigated. The results reveal a significant decrease in the sintering rate as well as the formation of voids and cracklike defects in the presence of nonsinterable platelets. The addition of a small amount (2 vol%) of tetragonal-ZrO2 particles enhances the sintering rate, increases end-point density (～99.5% of theoretical density) and prevents formation of sintering defects. |
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