Claims
- 1. A brazed joint comprising a diamond film brazed to tungsten carbide by means of a braze which comprises vanadium.
- 2. The brazed joint of claim 1, is wherein the vanadium is present in an amount of about 0.5 to 10 wt. % of the braze.
- 3. The brazed joint of claim 1, wherein the vanadium is present in an amount of about 0.75 to 5 wt. % of the braze.
- 4. The brazed joint of claim 1, wherein the braze further contains at least one metal selected from the group consisting of gold and nickel.
- 5. The brazed joint of claim 4, wherein the braze comprises at least about 1 wt. % vanadium, at least about 95 wt. % gold, and the balance being nickel.
- 6. The brazed joint of claim 1, wherein the braze comprises about 1.25-2.25 wt. % vanadium, about 96.5-98.5 wt. % gold, and about 0.25-1.25 wt. % nickel.
- 7. The brazed joint of claim 1, wherein the diamond film has a Young's modulus greater than about 1000 GPa and a thermal stability of greater than about 700.degree. C.
- 8. A brazed joint between a diamond film and tungsten carbide wherein the joint has an average shear strength of at least about 40,000 psi (276 MPa) and the braze has a contact angle with the diamond film of less than about 15.degree. wherein the braze comprises vandium.
- 9. The brazed joint of claim 8, wherein the vanadium is present in an amount of about 0.5 to 10 wt. % of the braze.
- 10. The brazed joint of claim 9 wherein the braze comprises at least about 1 wt. % vanadium, at least about 95 wt. % gold, and the balance being nickel.
- 11. The brazed joint of claim 8, wherein the braze comprises about 1.25-2.25 wt. % vanadium, about 96.5-98.5 wt. % gold, and about 0.25-1.25 wt. % nickel.
- 12. The brazed joint of claim 8, wherein the diamond film has a Young's modulus greater than about 1000 GPa and a thermal stability of greater than about 700.degree. C.
Parent Case Info
This is a divisional of application Ser. No. 08/283,311 filed on Jul. 29, 1994 allowed.
US Referenced Citations (8)
Divisions (1)
|
Number |
Date |
Country |
Parent |
283311 |
Jul 1994 |
|