Patent · US Active

Diamond tool piece

US11253925B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

Element Six (UK) Limited · GB

Inventors

Frank Schoofs · Biggenden, AU
JACQUELINE HALL · Franklin Lakes, US
Richard Bodkin · Biggenden, AU

Key dates

Filing date	May 16, 2017
Grant date	Feb 22, 2022
Priority date	—
Expiry date	Mar 27, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2235/427
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A high-pressure high-temperature, HPHT, diamond tool piece and a method of producing an HPHT diamond tool piece. At least a portion of the HPHT diamond tool piece comprises an aggregated nitrogen centre to C-nitrogen centre ratio of greater than 30%. The method includes irradiating an HPHT diamond material to introduce vacancies in the diamond crystal lattice, annealing the HPHT diamond material such that at least a portion of the HPHT diamond material comprises an aggregated nitrogen centre to C-nitrogen centre ratio of greater than 30%, and processing the HPHT diamond material to form an HPHT diamond tool piece.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.