High pressure production of perovskites and resulting products
US6780394B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Aug 16, 2001 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Mar 22, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/77
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A perovskite feedstock (powder or preform) is placed in a high-pressure cell of a high pressure/high temperature (HP/HT) apparatus and subjected to pressures in excess of about 2 kbar and temperatures above about 800° C. for a time adequate to increase the density of the preform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.