Coated diamond, manufacturing method and composite material thereof
AssigneesSumitomo Electric Industries, Ltd., Yoshinari Miyamoto
InventorsYoshinari Miyamoto, Hideki Moriguchi
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Abstract
A coated diamond which is dense and excellent in adherence and enables diamond to exhibit its superior characteristics, a manufacturing method and a composite material of the coated diamond are achieved. The coated diamond includes a diamond (1) and an SiC film (2) coating the diamond (1). The SiC mentioned above is substantially formed of β-SiC and a value of ratio I (220)/I (111) is at least 0.38 and at most 0.55, I (220) representing peak intensity of Miller index (220) of SiC and I (111) representing peak intensity of Miller index (111) thereof.
Claims23
A coated diamond comprising:
- a diamond (1);
- and
- a film (2) coating said diamond and including SiC as a main component,
- said SiC being substantially formed of β-SiC, and
- for said film including the SiC as a main component, a value of I(220)/I(111) being at least 0.38 and at most 0.55 where I(220) represents peak intensity of Miller index (220) of the SiC and I(111) represents peak intensity of Miller index (111) of the SiC.
A composite material comprising:
- at least one of metal, ceramic and resin;
- a diamond (1);
- and
- a film (2) coating said diamond (1) and including β-SiC as a main component, wherein said film has a value of a ratio of I(220)/I(111) being at least 0.38 and at most 0.55 where I(220) represents a peak intensity of Miller index (220) of the Sic and I(111) represents a peak intensity of Miller index (111) of the SiC;
- said at least one of metal, ceramic and resin and said diamond coated with said film being connected.
A method of manufacturing a coated diamond, comprising arranging silicon monoxide (12) in solid phase and diamond (11) in solid phase at respective positions having no contact with each other and allowing passage of gas therebetween, and heating said solid phase silicon monoxide and said solid phase diamond in a temperature range of 1150 to 1450° C.
Dependencies are inferred from the claim text.