Microstructure and properties of alumina-silicon carbide nanocomposites fabricated by pressureless sintering and post hot-isostatic pressing |
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| Authors: | Young-Keun JEONG Koichi NIIHARA National Core Research Center for Hybrid Materials Solution Pusan National University Busan - Korea Nagaoka University of Technology Niigata - Japan |
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| Affiliation: | Young-Keun JEONG1,Koichi NIIHARA2 1. National Core Research Center for Hybrid Materials Solution,Pusan National University,Busan 609-735,Korea,2. Nagaoka University of Technology,Niigata 940-2188,Japan |
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| Abstract: | Al2O3/5%SiC nanocomposites were fabricated by pressureless sintering using MgO as a sintering aid and then post hot-isostatic pressed (HIP), which can subsequently break through the disadvantage of hot-pressing process. The MgO additive was able to promote the densification of the composites, but could not induce the grain growth of Al2O3 matrix due to the grain growth inhibition by nano-sized SiC particles. After HIP treatment, Al2O3/SiC nanocomposites achieved full densification and homogeneous distributi... |
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| Keywords: | nanocomposite pressureless sintering fracture strength |
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