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

该奖项是根据《2009年美国复苏和再投资法案》(公法111-5)资助的。这项提案寻求126K美元的资金，以购买第二个多砧板高压装置。目前的多砧板系统都订满了吗？在过去的四年里也是如此。所要求的是一台1000吨容量、8800磅/平方英寸的压力机，带有15“垂直和17”水平开口。还要求提供皮？S设计的泵送系统的部件。压力机将安装在亚利桑那州立大学的高压设施中。新的出版社将开始服务于矿物物理、地球化学和实验岩石学以及其他高压研究。新的多压头压力机将用于了解地幔的传输特性，包括在橄榄石中的重氢相互扩散和地幔材料的导电性。通过模拟俯冲带压力和观察无水和有水转化动力学，将对橄榄石进行进一步研究。还将进行高压研究，以更好地了解冲击陨石的撞击历史、压力、温度和持续时间。在实验上，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材力学的影响。将在受控条件下评估地幔材料的扩散、电导率、相平衡和熔融行为。硅酸盐化学也将在典型的下地幔压力和温度下用压力机测定。其他类型的样品也将在电池中的高温和压力下进行研究，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的资源外，该设施还将用于本科生地质学实验室，成为本科生和研究生研究的组成部分，并作为亚利桑那州立大学现有推广项目的基础，旨在鼓励代表性不足的学生。***

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. ***