Composite material, method for producing same and member using same
AssigneeA.L.M.T. Corp.
InventorsMasayuki Itoh, Tadashi Arikawa, Norio Hirayama, Yoshinari Amano, Nobuyuki Saitoh
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Abstract
A composite material is a Mo—Cu based composite material having a Cu content of 30 to 70 weight % and containing a copper pool phase and an Mo—Cu based composite phase. The copper pool phase is contained in an amount of 10-50 weight %. A heat-sink member uses the composite material.
Claims7
A composite material, which is a Mo—Cu based composite material having a Cu content of 30 to 70 weight % and which comprises a Mo—Cu composite phase and at least one copper pool phase, said at least one copper pool phase being contained in an amount of 10 to 50 weight %, wherein said at least one copper pool phase has a grain size larger than molybdenum particles forming the Mo—Cu composite phase and an average short diameter of 50 to 200 μm.
A method of producing a composite material, comprising the step of compressing a matrix of Mo powder and a copper-based material having an average short diameter of 50 μm or more and arranged in said matrix to obtain a compressed body and, optionally, sintering said compressed body to obtain a pre-sintered body, and the step of infiltrating one of copper and a copper alloy into said compressed body or said pre-sintered body to produce a composite material having a Cu content of 30 to 70 weight % and containing 10-50 weight % of at least one copper pool phase.
Dependencies are inferred from the claim text.