高圧力の科学と技術
Online ISSN : 1348-1940
Print ISSN : 0917-639X
28 巻 , 2 号
選択された号の論文の12件中1~12を表示しています
巻頭言
特集:高圧力が拓く流体の分子描像
受賞記念解説:高圧力学会学会賞
受賞記念解説:高圧力学会奨励賞
  • 木村 友亮
    2018 年 28 巻 2 号 p. 131-138
    発行日: 2018年
    公開日: 2018/07/21
    ジャーナル フリー
    Laser, different from other light sources in that it emits light with a single wavelength coherently, spatially and temporally, is one of the most applicable tools for high-pressure experiments. Here I introduce three experimental techniques using the laser; (1) both-sided CO2-laser heated DAC system, (2) laser-shock compression technique coupling with DAC, and (3) Brillouin and Raman spectroscopies combined with CO2-laser heated DAC system. The newly-developed techniques were proposed as promising ways to access new material conditions, to determine temperature accurately, or to identify phase transitions including melting, toward explorations of new material phase regimes.
  • 辻野 典秀
    2018 年 28 巻 2 号 p. 139-148
    発行日: 2018年
    公開日: 2018/07/21
    ジャーナル フリー
    Knowledge of rheological properties of bridgmanite, which is the most abundant mineral at the lower mantle, is one of the most important parameters to understand mantle dynamics. We developed deformation experimental technique up to the top of lower mantle conditions using D-DIA apparatus as Kawai-type (6-8 type) Press. Using this technique, crystallographic-preferred-orientation (CPO) of bridgmanite induced by shear deformation was determined. The seismic shear wave anisotropy observed around subduction zone at the lower mantle, can be explained in terms of the CPO of bridgmanite with mantle flow parallel to the direction of subduction zone. We also succeeded to measure the viscosity of bridgmanite in dislocation creep regime by in-situ deformation experiments.
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