A method comprising: selecting a diamond material; irradiating the diamond material to increase toughness and/or wear resistance of the diamond material; and processing the diamond material into one or more diamond tool pieces, wherein the diamond material is selected from the group consisting of: a HPHT diamond material having a total equivalent isolated nitrogen concentration in the range 1 to 600 ppm; a CVD diamond material having a total equivalent isolated nitrogen concentration in the range 0.005 to 100 ppm; and a natural diamond material having a total nitrogen concentration in the range 1 to 2000 ppm, wherein the irradiating comprises controlling energy and dosage of irradiation to provide the diamond material with a plurality of isolated vacancy point defects, the isolated vacancy point defects having a concentration in a range 1 x 1014 to 1 x 1021 vacancies/cm-3
申请公布号
WO2011151416(A2)
申请公布日期
2011.12.08
申请号
WO2011EP59144
申请日期
2011.06.01
申请人
ELEMENT SIX LIMITED;TWITCHEN, DANIEL JAMES;GEOGHEGAN, SARAH LOUISE;PERKINS, NEIL;SCARSBROOK, GEOFFREY ALAN
发明人
TWITCHEN, DANIEL JAMES;GEOGHEGAN, SARAH LOUISE;PERKINS, NEIL;SCARSBROOK, GEOFFREY ALAN