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Title: Ferroelectric fluoride compositions and methods of making and using same

Patent ·
OSTI ID:1177549
;

A method for synthesis of a ferroelectric material characterized by the general formula A.sub.xB.sub.yF.sub.z where A is an alkaline earth metal, B is transition metal or a main group metal, x and y each range from about 1 to about 5, and z ranges from about 1 to about 20 comprising contacting an alkaline earth metal fluoride, a difluorometal compound and a fluoroorganic acid in a medium to form a reaction mixture; and subjecting the reaction mixture to conditions suitable for hydrothermal crystal growth.

Research Organization:
University of Houston System, Houston, TX (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0005032
Assignee:
University of Houston System (Houston, TX)
Patent Number(s):
8,999,189
Application Number:
13/036,983
OSTI ID:
1177549
Resource Relation:
Patent File Date: 2011 Feb 28
Country of Publication:
United States
Language:
English

References (9)

Method of forming metal fluoride films by the decomposition of metallo-organic compounds in the presence of a fluorinating agent patent September 1991
Ferroelectric thin film material, method of deposition, and devices using same patent September 1992
Method of forming ternary metal fluoride films by the decomposition of metallo-organic compounds in the presence of a fluorinating agent patent December 1993
Sol–gel synthesis of inorganic complex fluorides using trifluoroacetic acid journal July 2000
ChemInform Abstract: Hydrothermal Synthesis of Complex Fluorides NaHoF4 and NaEuF4 with Fluorite Structures under Mild Conditions. journal March 1998
Synthesis and characterization of MgF2 and KMgF3 nanorods journal June 2004
Alkaline earth fluorides and their complexes: A sol–gel fluorination study journal September 2007
Hydrothermal synthesis of transition metal fluorides in binary, ternary and quaternary systems journal December 1984
Hydrothermal synthesis and lanthanide doping of complex fluorides, LiYF4, KYF4 and BaBeF4 under mild conditions journal January 1997

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Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY