POLYCRYSTALLINE DIAMOND COMPACTS, CUTTING ELEMENTS AND EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS AND EARTH-BORING TOOLS专利检索- .提供在钻进时可自更新的切削刃专利检索查询-专利查询网

POLYCRYSTALLINE DIAMOND COMPACTS, CUTTING ELEMENTS AND EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS AND EARTH-BORING TOOLS
申请号	PCT/US2011033883	申请日	2011-04-26	公开(公告)号	WO2011139668A3	公开(公告)日	2011-12-22
申请人	BAKER HUGHES INC; ELEMENT SIX PRODUCTION PTY LTD; DIGIOVANNI ANTHONY A; GOUDEMOND IAIN P;			发明人	DIGIOVANNI ANTHONY A; GOUDEMOND IAIN P;
摘要	Methods of forming a polycrystalline diamond compact for use in an earth-boring tool include forming a body of polycrystalline diamond material including a first material disposed in interstitial spaces between inter-bonded diamond crystals in the body, removing the first material from interstitial spaces in a portion of the body, selecting a second material promoting a higher rate of degradation of the polycrystalline diamond compact than the first material under similar elevated temperature conditions and providing the second material in interstitial spaces in the portion of the body. Methods of drilling include engaging at least one cutter with a formation and wearing a second region of polycrystalline diamond material comprising a second material faster than the first region of polycrystalline diamond material comprising a first material. Polycrystalline diamond compacts and earth-boring tools including such compacts are also disclosed.
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