Multimegabar Research: X-ray and Optical Studies

Multimegabar 研究：X 射线和光学研究

• 批准号: 9530634
• 负责人: Arthur Ruoff
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-15 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9530634&HistoricalAwards=false
• 关键词: Multimegabar; Research; ray; Optical; Studies

9530634 Ruoff This research project will extend the static pressure range on molecular solids to above 460 GPa - from 230 GPa - and will provide a study of new forms of hydrogen, oxygen, and nitrogen as well as alkali hydrides. The objective is to make and study solid atomic metallic hydrogen, oxygen and nitrogen. The study of hydrides has the intent of learning more about the nature of the hydride ion. X-ray diffraction and optical studies, Raman, absorption, and reflection spectroscopy will be used. Microminiaturization will be emphasized with diamond anvil tips reduced to 20 micrometers and initial sample hole diameters in the refractory gasket material of 6 micrometers. %%% This research project plans to make solid atomic metallic hydrogen that has been predicted to be a high temperature superconductor. Solid atomic metals of oxygen and nitrogen are also planned to be formed during this project. The intent is to provide a strong fundamental basis for the understanding of these unique new metals. To achieve these goals this project plans to double the pressure range to which molecular solids have been studied to reach 460 GPa (or 4.6 Mbar or 4.6 million atmospheres) which is greater than the pressure at the earth's core. An objective of this research is to determine whether metallic hydrogen can persist at atmospheric pressure. If this objective is met there may follow some unique applications. ***

小行星9530634 该研究项目将把分子固体的静压范围从230 GPa扩大到460 GPa以上，并将提供对氢、氧和氮的新形式以及碱金属的研究。 目标是制造和研究固体原子金属氢、氧和氮。 对氢化物的研究旨在进一步了解氢化物离子的性质。 将使用X射线衍射和光学研究、拉曼、吸收和反射光谱。 微型化将强调金刚石砧尖减少到20微米和6微米的耐火垫圈材料中的初始样品孔直径。 %该研究项目计划制造被预测为高温超导体的固体原子金属氢。 该项目还计划形成氧和氮的固体原子金属。 其目的是为理解这些独特的新金属提供坚实的基础。 为了实现这些目标，该项目计划将分子固体研究的压力范围增加一倍，达到460 GPa（或4.6 Mbar或460万个大气压），这比地球核心的压力更大。 这项研究的目的是确定金属氢是否可以在大气压下持续存在。 如果这一目标得到满足，可能会有一些独特的应用。 ***