Preparation of lead-zirconium-titanium film and powder by electrodeposition
A process is disclosed for the preparation of lead-zirconium-titanium (PZT) film and powder compositions. The process comprises the steps of providing an electrodeposition bath, providing soluble salts of lead, zirconium and titanium metals to this bath, electrically energizing the bath to thereby direct ions of each respective metal to a substrate electrode and cause formation of metallic particles as a recoverable film of PZT powder on the electrode, and also recovering the resultant film as a powder. Recovery of the PZT powder can be accomplished by continually energizing the bath to thereby cause powder initially deposited on the substrate-electrode to drop therefrom into the bath from which it is subsequently removed. A second recovery alternative comprises energizing the bath for a period of time sufficient to cause PZT powder deposition on the substrate-electrode only, from which it is subsequently recovered. PZT film and powder so produced can be employed directly in electronic applications, or the film and powder can be subsequently oxidized as by an annealing process to thereby produce lead-zirconium-titanium oxide for use in electronic applications. 4 figs.
- Issue Date:
- OSTI Identifier:
- 131918
- Assignee:
- Midwest Research Inst., Kansas City, MO (United States) PTO; SCA: 360101; 360201; PA: EDB-95:156093; SN: 95001485805
- Patent Number(s):
- US 5,462,647/A/
- Application Number:
- PAN: 8-303,430
- Contract Number:
- AC36-83CH10093
- Resource Relation:
- Other Information: PBD: 31 Oct 1995
- Research Org:
- Midwest Research Institute
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; PZT; FABRICATION; LEAD ALLOYS; ELECTRODEPOSITION; ZIRCONIUM ALLOYS; TITANIUM ALLOYS; USES; ELECTRONIC EQUIPMENT; OXIDATION