Title: Sol-Gel Preparation Of Lead Magnesium Ni Obate (Pmn) Powdersand Thin Films

Abstract

A method of preparing a lead magnesium niobium oxide (PMN), Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3, precursor solution by a solvent method wherein a liquid solution of a lead-complex PMN precursor is combined with a liquid solution of a niobium-complex PMN precursor, the combined lead- and niobium-complex liquid solutions are reacted with a magnesium-alkyl solution, forming a PMN precursor solution and a lead-based precipitate, and the precipitate is separated from the reacted liquid PMN precursor solution to form a precipitate-free PMN precursor solution. This precursor solution can be processed to form both ferroelectric powders and thin films.

Inventors:

Boyle, Timothy J ^[1]

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+ Show Inventor Affiliations

1. Albuquerque, NM

Issue Date:

1999-01-12

Research Org.:

Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

OSTI Identifier:

879433

Patent Number(s):

5858323

Application Number:

08/890484

Assignee:

Sandia Corporation (Albuquerque, NM)

Patent Classifications (CPCs):

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G33/006 - {Compounds containing, besides niobium, two or more other elements, with the exception of oxygen or hydrogen}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2002/72 - by d-values or two theta-values, e.g. as X-ray diagram
C01P2002/77 - by unit-cell parameters, atom positions or structure diagrams
C01P2002/82 - by IR- or Raman-data
C01P2004/80 - Particles consisting of a mixture of two or more inorganic phases

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DOE Contract Number:  

AC04-94AL85000

Resource Type:

Patent

Country of Publication:

United States

Language:

English