Equation of State Measurements on Molten Silicates

熔融硅酸盐的状态测量方程

• 批准号: 9219092
• 负责人: Gregory Miller
• 金额: $ 2万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-03-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9219092&HistoricalAwards=false
• 关键词: Equation; State; Measurements; Molten; Silicates

Thermodynamic and Kinematic aspects of the formation and transport of silicate liquids in the Earth's deep interior are critically dependent on the equations of state of both the liquid and solid components. The range of liquid silicate compositions that have been studied at significantly high pressures is currently too narrow to allow quantitative evaluation of petrologic theories without also including many rather speculative assumptions. Additionally, the thermal part of the liquid equations of state is almost completely unconstrained by existing experimental data. The PI will conduct new molten silicate compression studies using the new 80 mm shock wave facility at the University of Chicago. New target designs and instrumentation strategies will be developed to achieve an order of magnitude improvement in precision. These changes will eliminate subjective aspects of the data analysis, and will greatly facilitate the determination of the thermal part of the Hugoniot equation of state.

形成的热力学和运动学方面， 硅酸盐液体在地球内部深处的运输 严格依赖于液体和液体的状态方程 和固体成分。 液体硅酸盐组合物的范围 目前已在显着高压下进行了研究 范围太窄，无法对岩石学理论进行定量评价 而不包括许多相当投机的假设。 此外，液体状态方程的热部分是 几乎完全不受现有实验数据的约束。 PI将进行新的熔融硅酸盐压缩研究， 芝加哥大学新的80毫米冲击波设备。 将开发新的目标设计和仪器策略 以实现精确度的数量级改进。 这些 变更将消除数据分析的主观方面， 将大大有助于确定热的一部分， Hugoniot状态方程