Back to results
US 7,479,331 B2Granted
Hard coating, target for forming hard coating, and method for forming hard coating
AssigneeKobe Steel, Ltd.
InventorKenji Yamamoto
Life of this patent
Estimating the term…
Abstract
The present invention attempts to provide a hard coating which has excellent hardness and lubricity. Such attempt has been completed by providing a hard coating comprising (Al1-aVa) (C1-XNX) wherein 0.27≦a≦0.75, and 0.3≦X≦1, wherein a and X independently represent an atomic ratio.
Claims20
A hard coating consisting of
- (Al1-aVa)(C1-XNX), wherein
- 0.35≦a≦0.75;
- 0.3≦X≦1;
- a and X independently represent an atomic ratio;
- and
- the hard coating comprises a NaCl-type crystal structure.
3 more elements
A hard coating consisting of
- (Al1-a-b-cVaSibBc)(C1-XNX), wherein
- 0.35≦a≦0.75;
- 0<b+c≦0.20;
- 0.3≦X≦1;
- a, b, c, and X independently represent an atomic ratio with the proviso that b and c are not simultaneously 0 while one of b and c may be 0;
- and
- the hard coating comprises a NaCl-type crystal structure.
4 more elements
A hard coating consisting of
- (Al1-a-b-c-d-eVaSibBcModWe)(C1-XNX), wherein
- 0.2≦a≦0.75;
- 0<b+c≦0.20;
- 0<d+e≦0.30;
- 0.3≦X≦1;
- a, b, c, d, e, and X independently represent an atomic ratio with the proviso that b and c are not simultaneously 0 while one of b and c may be 0, and d and e are not simultaneously 0 while one of d and e may be 0;
- and
- the hard coating comprises a crystal structure including at least one of a cubic structure and a hexagonal structure.
5 more elements
A hard coating consisting of
- (Al1-a-f-gVaHffZrg)(C1-XNX), wherein
- 0.35≦a≦0.75;
- 0<f+g≦0.5;
- and
- 0.3≦X≦1;
- a, f, g and X independently represent an atomic ratio with the proviso that f and g are not simultaneously 0 while one of f and g may be 0;
- and
- the hard coating comprises a crystal structure including at least one of a cubic structure and a hexagonal structure.
5 more elements
A hard coating consisting of
- (Al1-a-b-c-f-gVaSibBcHffZrg)(C1-XNX), wherein
- 0.01≦a≦0.75;
- 0<b+c≦0.20;
- 0<f+g≦0.5;
- 0.3≦X≦1;
- a, b, c, f, g, and X independently represent an atomic ratio with the proviso that b and c are not simultaneously 0 while one of b and c may be 0, and f and g are not simultaneously 0 while one of f and g may be 0;
- and
- the hard coating comprises a crystal structure including at least one of a cubic structure and a hexagonal structure.
5 more elements
A hard coating deposited by arc ion plating in a gas containing 30 to 100% by atom of N in relation to the sum of N and C by using
- a target comprising (Al1-aVa), wherein 0.35≦a≦0.75 and a represents an atomic ratio, or
- a target comprising (Al1-a-b-cVaSibBc), wherein 0.1≦a≦0.75;
- 0<b+c≦0.20;
- and
- a, b, and c independently represent an atomic ratio with the proviso that b and c are not simultaneously 0 while one of b and c may be 0;
- wherein
- the hard coating comprises a NaCl-type crystal structure.
4 more elements
Dependencies are inferred from the claim text.