Shinya Uesaka
Sumitomo Electric Industries
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Publication
Featured researches published by Shinya Uesaka.
Journal of Materials Science | 2000
Hitoshi Sumiya; Shinya Uesaka; Shuichi Satoh
Mechanical properties of high purity polycrystalline cBN sintered bodies synthesized by the direct conversion method under high pressure and high temperature have been investigated by hardness and transverse rupture strength (TRS) measurement in the temperature range of 20–1200 °C. It was confirmed that the hardness and TRS of the polycrystalline cBN depends strongly on the cBN grain size and the amount of residual (compressed) hBN in the sintered body. The fine-grained (<0.5 μm) and high purity (cBN > 99.9%) polycrystalline sintered body synthesized at 7.7 GPa, 2200–2400°C has highest hardness and TRS at any temperature. The TRS of the sintered body shows a positive temperature dependence up to 1200 °C. The high hardness and high TRS at high temperature of the fine-grained high purity polycrystalline cBN suggest that the sintered body has high potential in cutting tool uses.
Archive | 1997
Tomohiro Fukaya; Tetsuo Nakai; Junichi Shiraishi; Satoru Kukino; Shinya Uesaka
Archive | 1997
Satoru Kukino; Tetsuo Nakai; Junichi Shiraishi; Tomohiro Fukaya; Shinya Uesaka
Archive | 2004
Katsumi Okamura; Satoru Kukino; Shinya Uesaka; Tomohiro Fukaya
Archive | 1998
Shinya Uesaka; Tetsuo Nakai
Journal of The Japan Society of Powder and Powder Metallurgy | 2002
Hitoshi Sumiya; Shinya Uesaka
Archive | 2001
Shinya Uesaka; Hitoshi Sumiya
Journal of The Japan Society of Powder and Powder Metallurgy | 1990
Nobuya Iwamoto; Shinya Uesaka
Archive | 2007
Yasuhiko Itami-shi Okita; Takashi Itami-shi Kanda; Naoki Sakata; Shinya Uesaka; Tomohiro Fukaya; Koichi Itami-shi Sakikawa
Archive | 2009
Naoki Sakata; Shinya Uesaka; Takuichiro Tayama; Yasuyuki Kanada; Keiji Kinoshita; Hiroki Yonekura