복합 부재 및, 복합 부재의 제조 방법

• Main Authors: IKEDA TOMOAKI, GOTO KENGO, MORIGAMI HIDEAKI, HOSOE AKIHISA, ISHIKAWA FUKUTO, SUGISAWA MASANORI
• Format: Patent
• Language: Korean
• Published: 19.10.2020
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SEMICONDUCTOR DEVICES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF ALLOYS OR NON-FERROUS METALS

복수의 다이아몬드 입자와 상기 다이아몬드 입자끼리를 결합하는 금속상을 구비하는 복합 재료로 이루어지는 기판과, 금속으로 이루어지고, 상기 기판의 표면의 적어도 일부를 덮는 피복층을 구비하고, 상기 기판의 표면은, 상기 금속상의 표면과, 상기 다이아몬드 입자의 일부로 이루어지며, 상기 금속상의 표면으로부터 돌출되는 돌출부를 포함하고, 상기 피복층은, 평면에서 볼 때, 상기 금속상의 표면을 덮는 금속 피복부와, 상기 돌출부를 덮고, 상기 금속상의 표면을 덮지 않는 입자 피복부를 포함하고, 상기 금속 피복부의 두께에 대한 상기 입자 피복부의 두께의 비는, 0.80 이하이고, 상기 피복층의 표면 거칠기는, 산술 평균 거칠기(Ra)로 2.0㎛ 미만인 복합 부재. A composite member includes: a substrate formed of a composite material containing a plurality of diamond grains and a metal phase that bonds the diamond grains; and a coating layer made of metal and coating at least a part of a surface of the substrate. The surface of the substrate includes a surface of the metal phase, and a protrusion formed of a part of at least one diamond grain of the diamond grains and protruding from the surface of the metal phase. In a plan view, the coating layer includes a metal coating portion coating the surface of the metal phase, and a grain coating portion coating the protrusion and not coating the surface of the metal phase. A ratio of a thickness of the grain coating portion to a thickness of the metal coating portion is equal to or less than 0.80. The coating layer has a surface roughness as an arithmetic mean roughness Ra of less than 2.0 µm.