The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 1999
Filed:
Oct. 30, 1997
Applicant:
Inventors:
James A Voigt, Corrales, NM (US);
Diana L Sipola, Albuquerque, NM (US);
Bruce A Tuttle, Albuquerque, NM (US);
Mark T Anderson, Woodbury, MN (US);
Assignee:
Sandia Corporation, Albuquerque, NM (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
501134 ; 501135 ; 501137 ; 501138 ; 501 12 ; 252 / ; 252 / ; 423598 ; 423593 ; 423264 ;
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.