Method of forming composite, ordered material having sharp surface features
US8241508B2 · kind B2 · utility
30Cited by
15References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2006 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Sep 3, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of making a composite material having sharp surface features includes the steps of: making a composite body comprised of a recessive phase and a protrusive phase, the recessive phase having a higher susceptibility to a preselected etchant than the protrusive phase; and treating a surface of the composite body with the preselected etchant so that the protrusive phase protrudes from the surface to form a sharp surface feature, and the recessive phase defines a recessed surface area between the surface features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.