Simulation, Design and Experiments to Optimize the Diamond Anvil Cell

优化金刚石砧座的模拟、设计和实验

• 批准号: 9301443
• 负责人: Subrata Mukherjee
• 金额: --
• 依托单位: Cornell University
• 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: 1993-06-15 至 1996-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9301443&HistoricalAwards=false
• 关键词: Simulation; Design; Experiments; Optimize; Diamond

This research concerns the development of a diamond anvil cell (DAC) that will enable the attainment and accurate measurement of static pressures above 1 TPa (10 Mbars). (The current peak that has been attained is 5.6 Mbars, exceeding that at the center of the earth). At such levels of static pressure, major changes in the properties of materials take place (e.g., in binding and structure, and in electronic behavior .. e.g., oxygen becomes metallic). This new, high-performance DAC (HPDAC) will allow studies of the properties and behavior of materials in pressure regimes never before achieved. The main focus of the project will be to develop and implement numerical simulation and optimization tools that can be used for the best design of the HPDAC. A combination of boundary element and finite element methods will be used to create this simulation tool. Numerical simulations of the operation of the optimized HPDAC will be compared to experimental results and to simulations based on other designs optimized heuristically.

本研究系关于一种金刚石对顶砧之发展 (DAC)这将有助于实现和准确衡量 静态压力超过1 TPa（10 Mbar）。 (The电流峰值， 已经达到了5.6毫巴，超过了在中心的 地球）。 在这样的静压水平下， 材料的性质发生变化（例如，在绑定和结构中， 在电子行为中。例如，在一个实施例中，氧变成金属）。 这 新的高性能DAC（HPDAC）将允许研究 材料在压力状态下的性质和行为 在实现之前。 该项目的主要重点将是开发 并实施数值模拟和优化工具， 用于HPDAC的最佳设计。 的组合 边界元和有限元方法将用于创建 这个模拟工具。 数值模拟的操作， 优化的HPDAC将与实验结果进行比较， 基于其他设计的模拟优化的启发式。