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Inamura, Yasuhiro*; Katayama, Yoshinori; Utsumi, Wataru; Funakoshi, Kenichi*
Physical Review Letters, 93(1), p.015501_1 - 015501_4, 2004/07
Times Cited Count:120 Percentile:93.58(Physics, Multidisciplinary)The temperature dependence of the X-ray structure factor for SiO glass was measured at several pressures up to 19.2 GPa. The position of the first sharp diffraction peak moved to a higher momentum transfer as the temperature increased in a specific pressure-temperature range. The intermediate range structure was thermally relaxed to a denser one. Around 7 GPa, the temperature-induced shift saturated and the crystallization temperature drastically increased. These results support the existence of a relatively stable high-pressure form of SiO glass. A sudden transformation was not observed.
Miyauchi, Koichi*; Qiu, J.*; Shojiya, Masanori*; Kawamoto, Yoji*; Kitamura, Naoyuki*; Fukumi, Kohei*; Katayama, Yoshinori; Nishihata, Yasuo
Solid State Communications, 124(5-6), p.189 - 193, 2002/10
Times Cited Count:7 Percentile:38.76(Physics, Condensed Matter)A GeS glass was compressed up to 8 GPa at room temperature, heated up to 270 C under 8 GPa and then decompressed to ambient pressure at room temperature, using a large volume high-pressure apparatus. The local structural-changes around Ge were examined by means of EXAFS method. The Ge-S bond length became monotonously short with increasing applied-pressure up to 8 GPa at room temperature. When the specimen was heated to 270 C under 8 GPa, however, the vond length became slightly long. The elongated bond lengthe was almost kept even after the temperature was descended to room tempertature. In decompression process, the bond length became gradually long with releasing applied-pressure down to 2 GPa, following a change in compression process. Below 2 GPa, however, the Ge-S bond length was largely elongated, being lnger than the initial one. No significant change of coordination number was found in the compression and decompression processes up to 8 GPa. This change canbe explained by a combined effect of elastic and inelastic structural-changes.
Yanagisawa, Kazuaki; Yamashita, Toshiyuki; Kanazawa, Hiroyuki; Amano, Hidetoshi; Muromura, Tadasumi
Journal of Nuclear Science and Technology, 36(11), p.1052 - 1063, 1999/11
Times Cited Count:1 Percentile:13.15(Nuclear Science & Technology)no abstracts in English
Yanagisawa, Kazuaki; Omichi, Toshihiko*; Shirasu, Noriko; Yamashita, Toshiyuki; ; Onozawa, Atsushi; ; Kanazawa, Hiroyuki; Kanaitsuka, Fumio; Amano, Hidetoshi
JAERI-Tech 99-044, 46 Pages, 1999/05
no abstracts in English
; Takahashi, Yoshihisa
Journal of Nuclear Materials, 207, p.255 - 265, 1993/00
Times Cited Count:6 Percentile:55.97(Materials Science, Multidisciplinary)no abstracts in English
; *
Journal of Nuclear Materials, 127, p.116 - 118, 1985/00
Times Cited Count:2 Percentile:63.67(Materials Science, Multidisciplinary)no abstracts in English
JAERI-M 7807, 66 Pages, 1978/08
no abstracts in English
JAERI-M 7289, 40 Pages, 1977/09
no abstracts in English
; ; *
JAERI-M 7210, 51 Pages, 1977/08
no abstracts in English
; ; Ichikawa, Michio
JAERI-M 6904, 23 Pages, 1977/02
no abstracts in English
JAERI-M 6839, 58 Pages, 1976/12
no abstracts in English
; ; ; *
JAERI-M 6631, 18 Pages, 1976/07
no abstracts in English
; ; ; ; ; ; *
JAERI-M 5958, 51 Pages, 1975/01
no abstracts in English