Composite diamond body and composite diamond tool
AssigneesSumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
InventorsYoshiki Nishibayashi, Akihiko Ueda, Yutaka Kobayashi
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Abstract
A composite diamond body includes a diamond base material and a stable layer disposed on the diamond base material. The stable layer may have a thickness of 0.001 μm or more and less than 10 μm, and may include a plurality of layers. A composite diamond tool includes the composite diamond body. There are thus provided highly wear-resistant composite diamond body and composite diamond tool that are even applicable to mirror-finish planarization of a workpiece which reacts with diamond to cause the diamond to wear.
Claims2
A composite diamond body comprising:
- a diamond base material;
- and
- at least one stable layer disposed in at least one of
- a position on the diamond base material and
- a position in an inner region from a surface of the diamond base material to occupy at least a part of the diamond base material, wherein
- the stable layer includes at least one layer which is an ion-implanted layer disposed in the inner region from the surface of the diamond base material to occupy at least a part of the diamond base material, wherein the ion-implanted layer includes separate portions located in respective multiple regions each having a diameter of less than 1 μm as seen in a direction perpendicular to the surface of the diamond base material.
A composite diamond body comprising:
- a diamond base material;
- and
- at least one stable layer disposed in at least one of
- a position on the diamond base material and
- a position in an inner region from a surface of the diamond base material to occupy at least a part of the diamond base material, wherein
- the stable layer includes a plurality of layers,
- the plurality of layers includes an inner stable layer and an outer stable layer located in order from the side of the diamond base material,
- the inner stable layer includes at least one kind of metal selected from the group consisting of ruthenium, osmium, rhodium, iridium, palladium, and platinum, and
- the outer stable layer includes at least one kind of metal selected from the group consisting of tungsten, tantalum, molybdenum, niobium, vanadium, chromium, titanium, zirconium, and hafnium, wherein
- the stable layer includes at least one layer which is an ion-implanted layer disposed in the inner region from the surface of the diamond base material to occupy at least a part of the diamond base material, and
- the ion-implanted layer includes separate portions located in respective multiple regions each having a diameter of less than 1 μm as seen in a direction perpendicular to the surface of the diamond base material.
Dependencies are inferred from the claim text.