Invention Grant
- Patent Title: Method of improving the crystalline perfection of diamond crystals
- Patent Title (中): 改善金刚石晶体结晶完善的方法
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Application No.: US11721355Application Date: 2005-12-09
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Publication No.: US09061263B2Publication Date: 2015-06-23
- Inventor: Grant Charles Summerton , John Olaf Hansen , Robert Charles Burns , Timothy Patrick Gerard Addison , Simon Craig Lawson , Keith Barry Guy , Michael Peter Gaukroger
- Applicant: Grant Charles Summerton , John Olaf Hansen , Robert Charles Burns , Timothy Patrick Gerard Addison , Simon Craig Lawson , Keith Barry Guy , Michael Peter Gaukroger
- Applicant Address: GB Harwell, Oxford
- Assignee: ELEMENT SIX TECHNOLOGIES LIMITED
- Current Assignee: ELEMENT SIX TECHNOLOGIES LIMITED
- Current Assignee Address: GB Harwell, Oxford
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: ZA2004-9975 20041209; ZA2005/4019 20050518
- International Application: PCT/IB2005/003719 WO 20051209
- International Announcement: WO2006/061707 WO 20060615
- Main IPC: B01J3/06
- IPC: B01J3/06 ; B01J3/08 ; C01B31/06
Abstract:
This invention relates to a method of improving the crystalline perfection of IIa diamond crystals by heating the grown diamond crystals at an elevated temperature and an elevated pressure. The invention extends to grown diamond material having a low extended defect density with low nitrogen concentration.
Public/Granted literature
- US20090258229A1 METHOD OF IMPROVING THE CRYSTALLINE PERFECTION OF DIAMOND CRYSTALS Public/Granted day:2009-10-15
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