Liquid interface diffusion bonded titanium
Abstract
Abstract Fitted titanium members or articles are joined, face to fitted face, by a diffusion bonding process in which a small amount of brazing type material is interposed between said faces, which material, when rendered liquidus by heat, forms between the faying surfaces a liquid interface and resultant diffusion bridge which accelerates atomic diffusion of the basis materials across the bonded joint. The bonding cycle includes an initial period during which the interface material is rendered liquidus, followed by a diffusion period during which atomic diffusion occurs across the bridge provided by the interface material. The resultant bonded joint is characterized by atomic mixing and grain growth of the basis materials across the joint, and diffusion and dilution of the interface materials with the basis materials in the region of the joint.
Inventors
- 👤 J Woodward
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |