Method for creating a nano-perforated crystalline layer
US9610544B2 · kind B2 · utility
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2References
13Claims
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Inventor
Key dates
| Filing date | Dec 4, 2013 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Sep 17, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D61/025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is a method of controlling the perforation of crystalline grains in a layer of material. The first step of the method creates at least one crystalline layer composed of multiple grains and at least one grain boundary. Next, a material covers the grain boundaries to create a protective, reinforcing coating on the crystalline layer. Finally, an etching process creates perforations in the grains while the grain boundaries are protected from etching by the coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.