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Nonaqueous solution synthesis process for preparing oxide powders of lead zirconate titanate and related materials

United States Patent

5,908,802
June 1, 1999
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
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.
Voigt; James A. (Corrales, NM), Sipola; Diana L. (Albuquerque, NM), Tuttle; Bruce A. (Albuquerque, NM), Anderson; Mark T. (Woodbury, MN)
Sandia Corporation (Albuquerque, NM)
08/ 960,943
October 30, 1997
This invention was made with Government support under Contract No. DE-AC04-94AL85000 awarded by the Department of Energy. The Government has certain rights in the invention.