Method for achieving high pressure using isotopically-pure diamond anvils
US5295402A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1991 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Oct 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Broadly, the present invention is directed to a method for achieving high pressure wherein a sample is placed between a pair of diamond anvils and the anvils compressed. The improvement comprises forming the anvils from one or more of isotopically-pure .sup.12 C or .sup.13 C diamond. Isotopically-pure .sup.13 C diamond is preferred as it has the highest atomic or bond density parameter of any known material and, therefore, should have the highest hardness also Isotopically-enriched diamond .sup.13 C diamond should find utility as an anvil with higher .sup.13 C contents increasing the hardness of the anvil product. By utilizing isotopically pure diamond anvils, less breakage at current pressures should be realized concomitant with the ability to achieve yet higher pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.