CEMENTED TUNGSTEN CARBIDE BODIES HAVING A COBALT-BORON ALLOY MATRIX
A cobalt-boron alloy is used as the matrix in a polycrystalline diamond compact. The matrix is hot isostatic pressed with tungsten carbide to form a substrate. The substrate is then high-pressure, high temperature sintered with a diamond powder, preformed and acid-leeched diamond plate, or another u...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
04.08.2016
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Subjects | |
Online Access | Get full text |
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Summary: | A cobalt-boron alloy is used as the matrix in a polycrystalline diamond compact. The matrix is hot isostatic pressed with tungsten carbide to form a substrate. The substrate is then high-pressure, high temperature sintered with a diamond powder, preformed and acid-leeched diamond plate, or another ultra-hard material in a press mold to sweep the matrix, thereby creating an ultra-hard polycrystalline compact at a temperature 400° C. lower and with less graphitization than conventional techniques using cobalt binder. The compact is stronger and has a longer useful life than conventional compacts. |
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Bibliography: | Application Number: US201514611457 |