Upgrade of the Multi-Anvil High-Pressure Facility at Arizona State University

亚利桑那州立大学多砧高压设施升级

• 批准号: 0842418
• 负责人: Kurt Leinenweber
• 金额: $ 12.59万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0842418&HistoricalAwards=false
• 关键词: Upgrade; Multi; Anvil; Pressure; Facility

0842418Leinenweber "This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)." This proposal seeks ~$126K funding to purchase a second multi-anvil high pressure device. The current multi-anvil systems are fully booked ? and have been so for the past four years. Requested is a 1000 ton capacity, 8800 psi press with a 15" vertical and 17" horizontal opening. Components of a pumping system of the PI?s design are also requested. The press will be installed in the high-pressure facility at ASU. The new press will enter into service for mineral physics, geochemistry and experimental petrology, and other high-pressure studies. The new multi-anvil press will be used in understanding Earth mantle transport properties to include deuterium-hydrogen inter-diffusion in olivines and mantle material electrical conductivity. Olivines will be further studied through simulating subduction zone pressures and observing anhydrous and hydrous transformation kinetics. High-pressure studies will also be conducted to better understand shocked meteorites in terms of impact history, pressure, temperature and duration. Experimentally, hydrated olivines will be tested under varying temperatures and pressures with the long-term goal of determining hydration effects on slab mechanics. Diffusion, electrical conductivity, phase equilibrium and melting behavior of mantle materials will be assessed under controlled conditions. Silicate chemistry will also be determined under pressures and temperatures typical of the lower mantle using the press. Other sample types will also be studied under high temperatures and pressures in the cell, including glasses, perovskite, and novel hydrides. Aside from representing an available resource for high-pressure work among academic scientists, the facility will be used in undergraduate geology laboratories, be an integral part of undergraduate and graduate research, and serve as a foundation in existing ASU outreach programs designed to encourage underrepresented students. ***

0842418Leinenweber “该奖项由 2009 年美国复苏和再投资法案（公法 111-5）资助。”该提案寻求约 12.6 万美元的资金来购买第二台多砧高压装置。目前的多砧系统已订满？过去四年都是如此。要求的是容量为 1000 吨、压力为 8800 psi、垂直开口为 15 英寸、水平开口为 17 英寸的压力机。还需要 PI 设计的泵送系统组件。该压力机将安装在亚利桑那州立大学的高压设施中。新压机将用于矿物物理、地球化学和实验岩石学以及其他高压研究。新的多砧压机将用于了解地幔输运特性，包括橄榄石中的氘-氢相互扩散和地幔材料的电导率。将通过模拟俯冲带压力和观察无水和含水转化动力学进一步研究橄榄石。还将进行高压研究，以便更好地了解冲击陨石的撞击历史、压力、温度和持续时间。实验上，水合橄榄石将在不同的温度和压力下进行测试，长期目标是确定水合对板坯力学的影响。将在受控条件下评估地幔材料的扩散、电导率、相平衡和熔化行为。硅酸盐化学成分也将在下地幔典型的压力和温度下使用压力机测定。其他样品类型也将在电池的高温和高压下进行研究，包括玻璃、钙钛矿和新型氢化物。除了为学术科学家的高压工作提供可用资源外，该设施还将用于本科地质学实验室，成为本科生和研究生研究的一个组成部分，并作为现有亚利桑那州立大学外展项目的基础，旨在鼓励代表性不足的学生。 ***