Diamond composite and a method of making a diamond composite
AssigneeSandvik Intellectual Property AB
InventorsAndreas Blomqvist, Susanne Norgren, Malin Martensson, Ehsan Jalilian, Thomas Easley
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Abstract
The present invention relates to a diamond composite comprising diamond particles embedded in a binder matrix comprising SiC and a Mn+1AXn-phase, where no diamond-to-diamond bonding are present. For the Mn+1AXn-phase n=1-3, M is one or more elements selected from the group Sc, Ti, Zr, Hf, V, Nb, Ta, Cr and Mo, A is one or more elements selected from the group Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb and X is carbon and/or nitrogen.
Claims20
A diamond composite comprising diamond particles embedded in a binder matrix comprising SiC and a Mn+1AXn-phase, where n=1-3, M is one or more elements selected from the group Sc, Ti, Zr, Hf, V, Nb, Ta, Cr, and Mo, A is one or more elements selected from the group Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb and X is carbon and/or nitrogen, wherein no diamond-to-diamond bonding is present.
A method of making a diamond composite comprising the steps of:
- providing diamond particles embedded in a binder matrix comprising SiC and a Mn+1AXn-phase, where n=1-3, M is one or more elements selected from the group Sc, Ti, Zr, Hf, V, Nb, Ta, Cr, and Mo, A is one or more elements selected from the group Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb and X is carbon and/or nitrogen , wherein no diamond-to-diamond bonding is present;
- mixing the diamond particles and powders comprising the Mn+1AXn-phase and/or the one or more element M and the one or more element A either as pure metals or as carbides, nitrides, carbonitrides or oxycarbonitrides, in a mixing liquid to form a slurry;
- and
- drying said slurry into a powder which is then formed into a body of desired shape, which is subjected to infiltration of a Si source during a sintering operation.
A method of making a diamond composite comprising the steps of:
- providing diamond particles embedded in a binder matrix comprising SiC and a Mn+1AXn-phase, where n=1-3, M is one or more elements selected from the group Sc, Ti, Zr, Hf, V, Nb, Ta, Cr, and Mo, A is one or more elements selected from the group Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb and X is carbon and/or nitrogen , wherein no diamond-to-diamond bonding is present;
- mixing the diamond particles, a Si source, and powders comprising the Mn+1AXn-phase and/or the one or more element M and the one or more element A either as pure metals or as carbides, nitrides, carbonitrides or oxycarbonitrides, in a mixing liquid to form a slurry,
- drying said slurry into a powder which is then subjected to a sintering operation.
Dependencies are inferred from the claim text.