Diamond material
US9017632B2 · kind B2 · utility
3Cited by
9References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2010 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Apr 15, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA44C17/008
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of making fancy pale blue or fancy pale blue/green CVD diamond material is described. The method comprises irradiating single crystal diamond material that has been grown by a CVD process with electrons to introduce isolated vacancies into the diamond material, the irradiated diamond material having (or after a further post-irradiation treatment having) a total vacancy concentration [VT] and a path length L such that [VT]×L is at least 0.072 ppm cm and at most 0.36 ppm cm, and the diamond material becomes fancy pale blue or fancy pale blue/green in color. Fancy pale blue diamonds are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.