Vickers hardness of β-SiAlON prepared by a combination of combustion synthesis and spark plasma sintering
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概要
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This paper describes the Vickers hardness (Hv) of dense β-Si6-zAlzOzN8-z (z = 1, 2, and 3) prepared by the combination of combustion synthesis (CS) and spark plasma sintering (SPS). The Vickers hardness was measured by a Vickers microhardness tester in the applied load ranging from 0.981 N (0.1 kg) to 19.614 N (2.0 kg) at room temperature. A significant indentation size effect (ISE) is observed for each sample at low indentation test load. The ISE shows more clearly on the β-SiAlON with z = 3, while it reaches a saturation value when the applied indentation load F ≥ 4.903 N for z = 1 and 2. In conclusion, the Vickers hardness is 17.6 GPa for z = 1, 16.2 GPa for z = 2, and 14.7 GPa for z = 3 under the load of 19.614 N.
著者
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Akiyama Tomohiro
Center for Advanced Research of Energy Conversion Materials, Hokkaido University
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YI Xuemei
Graduate school of engineering, Hokkaido University
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WATANABE Kotaro
Graduate school of engineering, Hokkaido University
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Yi Xuemei
Graduate School Of Engineering Hokkaido Univ. Jpn
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Akiyama Tomohiro
Center For Advanced Research Of Energy Conversion Materials Hokkaido University
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Akiyama Tomohiro
Center For Advanced Research Of Energy And Materials Faculty Of Engineering Hokkaido University
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