Invention Grant
- Patent Title: Diamond bonded construction with thermally stable region
- Patent Title (中): 具有热稳定区域的金刚石粘结结构
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Application No.: US13759751Application Date: 2013-02-05
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Publication No.: US08622154B2Publication Date: 2014-01-07
- Inventor: Georgiy Voronin , J. Daniel Belnap , Feng Yu , Benjamin Randall
- Applicant: Smith International, Inc.
- Applicant Address: US TX Houston
- Assignee: Smith International, Inc.
- Current Assignee: Smith International, Inc.
- Current Assignee Address: US TX Houston
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Main IPC: E21B10/26
- IPC: E21B10/26 ; B24D3/10

Abstract:
Diamond bonded constructions comprise a polycrystalline diamond body having a matrix phase of bonded-together diamond grains and a plurality of interstitial regions between the diamond grains including a catalyst material used to form the diamond body disposed within the interstitial regions. A sintered thermally stable diamond element is disposed within and bonded to the diamond body, and is configured and positioned to form part of a working surface. The thermally stable diamond element is bonded to the polycrystalline diamond body, and a substrate is bonded to the polycrystalline diamond body. The thermally stable diamond element comprises a plurality of bonded-together diamond grains and interstitial regions, wherein the interstitial regions are substantially free of a catalyst material used to make or sinter the thermally stable diamond element. A barrier material may be disposed over or infiltrated into one or more surfaces of the thermally stable diamond element.
Public/Granted literature
- US20130146369A1 DIAMOND BONDED CONSTRUCTION WITH THERMALLY STABLE REGION Public/Granted day:2013-06-13
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