Process for the manufacture of electroceramics such as titanates and zirconates

Mixed metal oxide electroceramics are produced from dissolved metal oxides using aqueous processing. For example, zirconates and titanates are manufactured from titania and zirconia using aqueous processing by forming an ammonium titanium complex, or an ammonium zironium complex, which can then be further reacted to release ammonia and form a metal titane or metal zirconate precursor. The precursor is then pyrolyzed to the corresponding oxide, e.g. barium and/or strontium titanate.
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Abstract/Description: Mixed metal oxide electroceramics are produced from dissolved metal oxides using aqueous processing. For example, zirconates and titanates are manufactured from titania and zirconia using aqueous processing by forming an ammonium titanium complex, or an ammonium zironium complex, which can then be further reacted to release ammonia and form a metal titane or metal zirconate precursor. The precursor is then pyrolyzed to the corresponding oxide, e.g. barium and/or strontium titanate.
Subject(s): 501/137
264/624
423/598
501/135
Date Issued: 1992-01-21
Title: Process for the manufacture of electroceramics such as titanates and zirconates.
Name(s): The University of Toledo, assignee
Davies, Julian A., inventor
Dutremez, Sylvain, inventor
Type of Resource: text
Genre: patent
Publisher: United States Patent and Trademark Office
Other Date: Date Filed: 1989-12-12
Date Issued: 1992-01-21
Physical Form: application/pdf
Extent: 8 p.
Abstract/Description: Mixed metal oxide electroceramics are produced from dissolved metal oxides using aqueous processing. For example, zirconates and titanates are manufactured from titania and zirconia using aqueous processing by forming an ammonium titanium complex, or an ammonium zironium complex, which can then be further reacted to release ammonia and form a metal titane or metal zirconate precursor. The precursor is then pyrolyzed to the corresponding oxide, e.g. barium and/or strontium titanate.
Identifier(s): utpatents-US5082812 (IID)
Patent No.: US5082812 (patno)
Appl. No.: 07/449570 (appno)
Subject(s): 501/137
264/624
423/598
501/135
Held by: United States Patent and Trademark Office (USPTO) Public Search Facility
Location: University of Toledo Digital Repository
Rights Statement: No Copyright - United States
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