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Acquisition of a 1000-Ton Multianvil Press for High Pressure Research

Acquisition of a 1000-Ton Multianvil Press for High Pressure Research
采购 1000 吨多砧压力机用于高压研究
批准号:
9520860
负责人:
John Holloway
金额:
$6.0万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1995
资助国家:
美国
项目状态:
已结题
起止时间:
1995-08-01 至 1997-07-31

项目摘要

项目成果

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中文摘要
翻译
9520860霍洛韦亚利桑那州立大学(亚利桑那州立大学)高压实验室将安装一个新的多砧板压力机框架。这是一个联合使用的设施,用于矿物物理、地球化学和实验岩石学研究,以及材料合成和性能研究。此次收购的主要目的将是扩大现有的多顶锤设施,使其包括300至1000吨的力范围,从而能够进行更高的压力实验,并能够获得更大的样品。具体地说,该框架的1000吨能力将用于将亚利桑那州立大学的可用压力范围扩大到2800摄氏度以下的约27 GPA,并在较低压力的实验中增加样品大小。扩大的合成压力范围对于制备已知和新颖的高压相,如石榴石、钙钛矿和超高压玻璃,以及材料合成和矿物物理中的压力诱导非晶化研究都将是重要的。更大的样本量将被用于材料表征和性能测量,以及多封闭胶囊环境的设计,这在受控氧化还原状态岩石学设计和材料合成实验中是重要的。对于地球科学,新的出版社将允许对过渡带和下地幔的P-T范围进行超高压地质研究,改进对运行环境的控制,以再现地球内的化学条件。主要的焦点将是控制地幔系统中的氧逸度和H2O含量。压力机的制造和安装预计将在6个月内完成。科学项目将在剩下的时间里继续进行,然后压力机将作为亚利桑那州立大学高压设施中的永久设备进行操作。***
英文摘要
9520860 Holloway A new multianvil press frame will be installed in the high- pressure laboratory at Arizona State University (ASU). This is a joint use facility for studies in mineral physics, geochemistry and experimental petrology, and studies in materials synthesis and properties. The major purpose of this acquisition will be to augment the existing multianvil facilities to include the force range between 300 and 1000 tons, enabling higher pressure experiments to be performed, and allowing larger samples to be obtained. Specifically, the 1000 ton capability of the frame will be used both to extend the available pressure range at ASU to approximately 27 GPa at temperatures up to 2800 C, and to increase the sample size in experiments at lower pressures. The extended range of synthesis pressures will be important in preparation of both known and novel high pressure phases, such as garnets, perovskites and ultra-high pressure glasses, and in pressureinduced amorphization studies in materials synthesis and mineral physics. The larger sample size will be utilized for materials characterization and properties measurements, and for design of multienclosure capsule environments, which are important in design of controlled redox state petrology and in materials synthesis experiments. For Earth sciences, the new press will allow ultra-high pressure geological studies to the P-T range of the transition-zone and lower mantle, with improved control of the run environment to reproduce chemical conditions within the Earth. The principal focus will be on controlling oxygen fugacity and H2O content in mantle systems. Fabrication and installation of the press is projected at 6 months. Scientific projects will proceed for the remainder of the time, and the press will then be operated as a permanent piece of equipment in the ASU high- pressure facility. ***
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