Nonaqueous solution synthesis process for preparing oxide powders of lead zirconate titanate and related materials
US5908802A · kind A · utility
10Cited by
12References
19Claims
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Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/40
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing powders of perovskite-type compounds which comprises mixing a metal alkoxide solution with a lead acetate solution to form a homogeneous, clear metal solution, adding an oxalic acid/n-propanol solution to this metal solution to form an easily filterable, free-flowing precursor powder and then calcining this powder. This process provides fine perovskite-phase powders with ferroelectric properties which are particularly useful in a variety of electronic applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.