SBIR PHASE I: Supercell for Achieving Very High Static Pressures and Temperatures in Relatively Large Working Volumes

SBIR PHASE I：超级电池，可在相对较大的工作体积中实现极高的静压和温度

• 批准号: 0060309
• 负责人: Oleg Voronov
• 金额: $ 10万
• 依托单位: DIAMOND MATERIALS INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-01-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0060309&HistoricalAwards=false
• 关键词: SBIR; PHASE; Supercell; Achieving; Very

This Small Business Innovation Research (SBIR) Phase I project will develop a new high pressure/high temperature (HPHT) cell for conventional hot pressing units, which will be capable of achieving very high static pressures and temperatures in relatively large working volumes. This new unit, which is called a 'supercell', will enable pressures up to 30 GPa and temperatures up to ~5000C in a working volume of 1 mm3. In contrast, a conventional diamond anvil cell can attain pressures of ~30 GPa in a working volume of only ~1 mm3, with temperatures limited to about 400C. Thus, the supercell will have capabilities for processing materials that reach beyond those of today's systems. Utilizing the significant pressure/temperature/volume range of the supercell, it should be possible to obtain the very high pressure and very high temperature needed for crystallization of diamond from liquid carbon, and make possible the study of unknown regions of the carbon state (phase) diagram. HPHT crystallization of diamond from liquid carbon provides an opportunity to produce nanocrystalline, microcrystalline, or monocrystalline diamond, depending on the cooling rate from the liquid state, as well as opening new possibilities for doping diamond with boron and/or nitrogen.This project, if successful, will enable manufacture of pure and doped nanocrystalline, microcrystalline and monocrystalline diamonds, and will facilitate the production of advanced anvils for the diamond industry as well as for production of inserts for drill bits. The technology also has important potential for university laboratories.

该小型企业创新研究（SBIR）第一阶段项目将为传统的热压单元开发一种新的高压/高温（HPHT）单元，该单元将能够在相对较大的工作体积中实现非常高的静压和温度。这个新的单元被称为“超级单元”，将在1 mm 3的工作体积内实现高达30 GPa的压力和高达5000 C的温度。相比之下，传统的金刚石砧座单元可以在仅约1 mm 3的工作体积中获得约30 GPa的压力，温度限制在约400 ℃。因此，超级电池将具有处理超出当今系统的材料的能力。利用超晶胞的显著压力/温度/体积范围，应该可以获得从液态碳结晶金刚石所需的非常高的压力和非常高的温度，并且可以研究碳状态（相）图的未知区域。从液态碳中进行金刚石的高温高压结晶提供了一个生产纳米晶、微晶或单晶金刚石的机会，这取决于从液态的冷却速率，同时也为用硼和/或氮掺杂金刚石开辟了新的可能性。该项目如果成功，将能够制造纯的和掺杂的纳米晶、微晶和单晶金刚石，并且将促进用于金刚石工业的先进砧的生产以及用于钻头的插入件的生产。该技术对大学实验室也有重要的潜力。