Development of Laser Heating for Sound Velocity Measurements at High P and T
开发用于高 P 和 T 下声速测量的激光加热
基本信息
- 批准号:0002021
- 负责人:
- 金额:$ 27.93万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2000
- 资助国家:美国
- 起止时间:2000-07-15 至 2006-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
0002021BassThis award supports the development of instrumentation and techniques to enable the measurement of acoustic wave velocities in minerals and other solids at extremely high pressures and temperatures that are characteristic of the Earth's deep interior. The technique will couple the laser heated diamond anvil cell with Brillouin spectroscopy. Development of this technology will yield direct information on the seismic velocities in materials under conditions that have never before been attained. Experiments will be obtained on materials that are thought to be constituents of the Earth's deep interior, and the results will be compared with information on the velocity structure of the Earth as obtained from seismological studies.Results should yield significant new insights on the chemical composition of the Earth at depth, the thermal structure of the Earth, and Earth's evolution through time. The facility will allow measurement of the physical properties of a variety of solid materials (not just minerals) under extreme temperature and pressure conditions, and therefore is poised to make significant contributions to the field of materials science as well as earth science. Brillouin scattering measurements will be attempted to temperatures of up to 2500 Kelvin, while the sample is simultaneously held at pressures of up to 50 GPa. Initial experiments will concentrate on careful characterization of the temperature/pressure environment (including accounting for thermal pressure), identifying sources of error in the method, and developing techniques for making the most accurate measurements possible. ***
0002021低音该奖项支持仪器和技术的发展,使矿物和其他固体在极高的压力和温度下的声波速度的测量是地球深部内部的特征。 该技术将激光加热金刚石对顶砧与布里渊光谱耦合。 这项技术的发展将产生在以前从未达到的条件下材料中地震速度的直接信息。将对被认为构成地球深部内部的物质进行实验,并将实验结果与从地震学研究中获得的关于地球速度结构的信息进行比较,其结果将对地球深部的化学组成、地球的热结构和地球随时间的演变产生重要的新认识。该设施将允许在极端温度和压力条件下测量各种固体材料(不仅仅是矿物)的物理特性,因此有望为材料科学和地球科学领域做出重大贡献。 布里渊散射测量将尝试高达2500开尔文的温度,而样品同时保持在高达50 GPa的压力。 最初的实验将集中在温度/压力环境的仔细表征(包括考虑热压),确定方法中的误差来源,并开发技术,使最准确的测量成为可能。***
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Jay Bass其他文献
Jay Bass的其他文献
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{{ truncateString('Jay Bass', 18)}}的其他基金
Sound Velocities and Elastiicity of Deep-earth Mat
深地垫的声速和弹性
- 批准号:
1620616 - 财政年份:2016
- 资助金额:
$ 27.93万 - 项目类别:
Continuing Grant
Consortium for Materials Properties Research in Earth Sciences (COMPRES): National Facilities and Infrastructure Development for High-Pressure Geosciences Research
地球科学材料特性研究联盟 (COMPRES):高压地球科学研究的国家设施和基础设施开发
- 批准号:
1157758 - 财政年份:2012
- 资助金额:
$ 27.93万 - 项目类别:
Cooperative Agreement
COMPRES: Community Facilities and Infrastructure Development for High-Pressure Mineral Physics and Geosciences
COMPRES:高压矿物物理和地球科学的社区设施和基础设施开发
- 批准号:
1043050 - 财政年份:2010
- 资助金额:
$ 27.93万 - 项目类别:
Cooperative Agreement
Collaborative Research: High Pressure Calibration at High Temperatures
合作研究:高温下的高压校准
- 批准号:
0842345 - 财政年份:2009
- 资助金额:
$ 27.93万 - 项目类别:
Standard Grant
Sound Velocities and Elasticity of Deep-Earth Materials at High Pressures and Temperatures
高压和高温下地球深部材料的声速和弹性
- 批准号:
0738871 - 财政年份:2008
- 资助金额:
$ 27.93万 - 项目类别:
Continuing Grant
COMPRES: Community Facilities and Infrastructure Development for High-Pressure Mineral Physics and Geosciences
COMPRES:高压矿物物理和地球科学的社区设施和基础设施开发
- 批准号:
0649658 - 财政年份:2007
- 资助金额:
$ 27.93万 - 项目类别:
Cooperative Agreement
Collaborative Research: Elasticity Grand Challenge of the COMPRES Initiative
合作研究:COMRES 计划的弹性大挑战
- 批准号:
0135642 - 财政年份:2002
- 资助金额:
$ 27.93万 - 项目类别:
Continuing Grant
Workshop on Phase Transitions and Mantle Discontinuities
相变和地幔不连续性研讨会
- 批准号:
0106655 - 财政年份:2001
- 资助金额:
$ 27.93万 - 项目类别:
Standard Grant
Sound Velocities and Elastic Moduli of Minerals Mantle Pressures and Temperatures with Laser Heating
激光加热下矿物地幔压力和温度的声速和弹性模量
- 批准号:
0003383 - 财政年份:2001
- 资助金额:
$ 27.93万 - 项目类别:
Continuing Grant
CSEDI: Collaborative Res.: Composition and Seismic Structure of the Mantle Transition Zone
CSEDI:协作研究:地幔过渡带的组成和地震结构
- 批准号:
0112376 - 财政年份:2001
- 资助金额:
$ 27.93万 - 项目类别:
Standard Grant
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