Renewal-Experimental Study of Equation of State and Elasticity of Earth Materials at High Pressure and Temperature

高压高温下地球材料状态方程和弹性的更新实验研究

• 批准号: 9316980
• 负责人: Ho-kwang Mao
• 金额: $ 30.51万
• 依托单位: Carnegie Institution of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-07-15 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9316980&HistoricalAwards=false
• 关键词: Renewal; Experimental; Study; Equation; State

9316980 Mao The PIs will continue their systematic study of the equations of state and elasticity of Earth Materials with diamond-anvil cells. They will use synchrotron x-ray diffraction techniques to determine lattice parameters and molar volumes, and Brillouin spectroscopy to determine compressional and shear wave velocities, both at high pressure and temperature. With recently established experimental techniques, they will systematically acquire a comprehensive and accurate database representative of realistic Earth compositional models. They will continue to extend experimental capabilities of accurate determinations of elastic properties to higher pressure and temperature, and will conduct reconnaissance experiments at the extreme P-T conditions of the lower mantle and core. The acquired database will be applied to constrain structural, dynamic, and evolutionary models of the Earth's deep interior. ****

小行星9316980 PI将继续使用金刚石砧座对地球材料的状态方程和弹性进行系统研究。 他们将使用同步加速器X射线衍射技术来确定晶格参数和摩尔体积，并使用布里渊光谱来确定高压和高温下的压缩波和剪切波速度。 利用最近建立的实验技术，他们将系统地获得一个代表现实地球成分模型的全面和准确的数据库。 他们将继续把精确测定弹性性质的实验能力扩大到更高的压力和温度，并将在下地幔和地核的极端P-T条件下进行侦察实验。 所获得的数据库将用于约束地球深部内部的结构、动力和演化模型。 ****