High-pressure Properties of Liquid and Solid CO_2 by Laser Brillouin Scattering

激光布里渊散射研究液态和固态CO_2的高压特性

• 批准号: 05455010
• 负责人: SHIMIZU Hiroyasu
• 金额: $ 4.29万
• 依托单位: Gifu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05455010/
• 关键词: Acoustic Phonon Spectroscopy; Ultrahigh-Pressure Brillouin Scattering; Carbon Dioxide; Nitrous Oxide; Sound Velocity; Elastic Constant; 状態方程式

High-pressure acoustic Brillouin spectroscopy has been applied to molecular solids carbon dioxide (CO_2) and nitrous oxide (N_2O) at pressures up to 6 GPa and room temperature. The best fit of the angular dependence of Brillouin acoustic velocities between experimental values and calculations based on Every's expression for elastic waves of an arbitary direction yielded the orientation of CO_2 and N_2O cubic-phase crystal grown in the diamond-anvil high-pressure cell. In situ determinations of sound velocities, as a function of pressure, could be made for any direction, the refractive index, the density, and the elastic constants. The elastic properties of an isoelectronic pair, CO_2 and N_2O,are in vestigated in thier pressure-induced liquid and solid phases

高压声布里渊谱已应用于二氧化碳(CO_2)和一氧化二氮(N_2O)分子固体，压力高达6 GPa室温下。根据任意方向弹性波的EVE公式计算的布里渊声速与实验值之间的角度关系的最佳拟合度，得到了在金刚石顶高压室中生长的CO_2和N_2O立方相晶体的取向。可以对任何方向、折射率、密度和弹性常数进行作为压力函数的声速的现场测量。研究了等电子对CO_2和N_2O在压力诱导的液、固两相中的弹性性质

项目成果

H.Shimizu: "High-Pressure Brillouin scattering of molecular single-crystals grown in a diamond-anvil cell" Current Japanese Materials Research “Progress in High Pressure Research"(Elsevier Sci.Puld.). 15(印刷中). 17 (1995)

H.Shimizu：“金刚石砧池中生长的分子单晶的高压布里渊散射”当前日本材料研究“高压研究进展”（Elsevier Sci.Puld.）15（出版中）。 1995）

H.Shimizu: "Acoustic velocities,refractive index,and elastic constants of liquid and solid CO_2 at high pressures up to 6 GPa" Physical Review B. 47. 11567-11570 (1993)

H.Shimizu：“在高达 6 GPa 的高压下液体和固体 CO_2 的声速、折射率和弹性常数”物理评论 B. 47. 11567-11570 (1993)

H.shimizu: "High-Pressure Brillouin Scattering and Elastic Properties of Liquid and Solid N2O and Co2" Journal of Physical Chemistry. 98. 670-673 (1994)

H.shimizu：“液体和固体 N2O 和 Co2 的高压布里渊散射和弹性性质”物理化学杂志。

清水宏晏: "超高圧ブリルアン散乱による単純分子結晶の軸方位、音速、弾性定数のその場決定" 固体物理. 29. 479-485 (1994)

Hiroaki Shimizu：“通过超高压布里渊散射原位测定简单分子晶体的轴向取向、声速和弹性常数”固体物理 29. 479-485 (1994)。

佐々木重雄: "ダイヤモンド・アンビル・セルを用いた超高圧ブリュアン散乱測定" 高圧力の科学と技術. 3. 264-265 (1994)

Shigeo Sasaki：“使用金刚石砧池进行超高压布里渊散射测量”高压科学与技术。3. 264-265 (1994)。