Effect of Sintering Temperature on the Densification of Al2O3 |
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| Authors: | Sung-Tae Kwon Doh-Yeon Kim Thae-Khapp Kang Duk N Yoon |
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| Affiliation: | Department of Inorganic Materials Engineering, College of Engineering, Seoul National University, Seoul 151, Korea;Research Center, Korea Tungsten Mining Company, Daegu 630, Korea;Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Seoul 131, Korea |
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| Abstract: | Alumina powder compacts sintered at various temperatures were isostatically hot-pressed. The specimens sintered to the closed-pore state can be densified further by hot isostatic pressing. If the open pores are eliminated during sintering, sintering at a low temperature is desirable to achieve a full densification after hot-pressing. Sintering at high temperatures causes pores to be trapped inside the grains; these pores are difficult to eliminate by subsequent hot-pressing. |
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