Turbostratic boron nitride consolidated by SPS
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概要
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Turbostratic boron nitride (t-BN) powder prepared by mechanical grinding of hexagonal boron nitride (h-BN) under the nitrogen atmosphere with the oxygen concentration less than 1ppm was consolidated by spark plasma sintering (SPS). The turbostratic structure was maintained after the consolidation, which was characterized by XRD, Raman and IR spectra. The t-BN consolidated without any additives at 1900℃ for 10min under applied pressure of 100MPa showed a bulk density of 95%. The bending strength, Young's modulus and Shore hardness of the consolidated t-BN were 72MPa, 259GPa and 117 Hs, respectively. They were much higher than those of conventionally consolidated h-BN. On the other hand, the thermal conductivity was 3W/mK and much lower than the compact of h-BN.
- 社団法人日本セラミックス協会の論文
- 2009-02-01
著者
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KODERA Yasuhiro
Department of Surgery II, Nagoya University Graduate School of Medicine
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Kodera Yasuhiro
Department Of Materials Chemistry Innovative Materials And Processing Research Center Ryukoku Univer
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Munir Zuhair
Department Of Chemical Engineering And Materials Science University Of California
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Ohyanagi Manshi
Department Of Materials Chemistry Innovative Materials And Processing Research Center Ryukoku Univer
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Ohyanagi Manshi
Department Of Materials Chemistry Faculty Of Science And Technology Ryukoku University
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TOYOFUKU Naoki
Department of Materials Chemistry, Innovative Materials and Processing Research Center, Ryukoku Univ
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YAMASAKI Natsuki
Department of Materials Chemistry, Innovative Materials and Processing Research Center, Ryukoku Univ
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Toyofuku Naoki
Department Of Materials Chemistry Innovative Materials And Processing Research Center Ryukoku Univer
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Yamasaki Natsuki
Department Of Materials Chemistry Innovative Materials And Processing Research Center Ryukoku Univer
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