Upgrading of USSA-2000 Multi-anvil facility

USSA-2000多砧设施升级

• 批准号: 0447135
• 负责人: Donald Weidner
• 金额: $ 14.28万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-12-01 至 2008-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0447135&HistoricalAwards=false
• 关键词: Upgrading; USSA; 2000; Multi; anvil

EAR-0447135WeidnerThe USSA-2000, a Kawai-type multi-anvil high-pressure apparatus, is a vital element in the Stony Brook high pressure laboratory. The driving intellectual merit of the proposed work includes the continuation of the following projects: acoustic velocity measurements at high pressure and temperature, diffusion studies, phase equilibria studies, polycrystal synthesis for elasticity measurements, polycrystal synthesis for rheology measurements, and single crystal synthesis for structure and elasticity measurements. This award will permit the replacement of the first stage anvils and upgrade the hydraulic pumping system. We utilize an anvil design that will accommodate the entire 2000 tons of the loading frame, whereas the current anvils limit the maximum force to 1200 tons. The new pumping system will allow automatic loading and unloading, thus saving operator time and limiting operator error. The broader impact of the proposed development include: graduate student education as part of research projects, undergraduate education as it is highly used in our REU summer program, support of research projects for the science community on a 'at cost' basis. The expanded force capability will give the US community access to a larger force - hence larger volume at-the-same pressure apparatus than is currently available. This has proven quite useful with the 5000 ton apparatus at Bayreuth. While the current system is at a lower force, it is an economical upgrade that at least uses the full capacity of the existing loading system.

EAR-0447135 Weidner USSA-2000是一种卡瓦伊型多砧板高压设备，是石溪高压实验室的重要部件。拟议工作的主要智力价值包括继续开展下列项目：高压和高温下的声速测量、扩散研究、相平衡研究、用于弹性测量的多晶合成、用于流变学测量的多晶合成以及用于结构和弹性测量的单晶合成。该合同将允许更换第一级铁锤并升级液压泵系统。我们采用了可容纳整个2000吨装载框架的砧座设计，而目前的砧座将最大受力限制在1200吨。新的抽水系统将允许自动装卸，从而节省操作员的时间并减少操作员的错误。拟议发展的更广泛的影响包括：研究生教育作为研究项目的一部分，本科教育，因为它在我们的REU暑期项目中得到了高度使用，在“按成本”的基础上支持科学界的研究项目。扩大的部队能力将使美国社区能够获得比目前可用的更大的部队--因此在相同压力下的更大体积。事实证明，这对拜罗伊特5000吨的仪器非常有用。虽然目前的系统力量较小，但这是一种经济的升级，至少可以充分利用现有装载系统的能力。