Process for producing a single crystal article
US4634491A · kind A · utility
2Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 21, 1985 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Jun 21, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/52
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for producing a single crystal alloy object comprising providing a preform having coarse columnar crystals in a discard portion, isolating, by cutting, one of the columnar crystals to form a seed crystal connected to metal in a product portion of said preform, zone annealing the thus prepared preform to produce single crystal structure and discarding the discard portion of the preform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.