Method of increasing the grain size of polycrystalline materials by directed energy-beams
US4406709A · kind A · utility
65Cited by
4References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 24, 1981 |
| Grant date | Sep 27, 1983 |
| Priority date | — |
| Expiry date | Jun 24, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S117/905
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Crystal grain size in a material is increased by scanning the material with an appropriately directed energy beam. Short-term oscillation in the scan, and a particular temperature gradient configuration in the wake of the scan, results in growth of large-grain crystallites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.