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Title: Method for fabrication of ceramic dielectric films on copper foils

Abstract

The present invention provides copper substrate coated with a lead-lanthanum-zirconium-titanium (PLZT) ceramic film, which is prepared by a method comprising applying a layer of a sol-gel composition onto a copper foil. The sol-gel composition comprises a precursor of a ceramic material suspended in 2-methoxyethanol. The layer of sol-gel is then dried at a temperature up to about 250.degree. C. The dried layer is then pyrolyzed at a temperature in the range of about 300 to about 450.degree. C. to form a ceramic film from the ceramic precursor. The ceramic film is then crystallized at a temperature in the range of about 600 to about 750.degree. C. The drying, pyrolyzing and crystallizing are performed under a flowing stream of an inert gas.

Inventors:
; ; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1363751
Patent Number(s):
9679705
Application Number:
14/631,536
Assignee:
UCHICAGO ARGONNE, LLC
Patent Classifications (CPCs):
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Feb 25
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Ma, Beihai, Narayanan, Manoj, Dorris, Stephen E., and Balachandran, Uthamalingam. Method for fabrication of ceramic dielectric films on copper foils. United States: N. p., 2017. Web.
Ma, Beihai, Narayanan, Manoj, Dorris, Stephen E., & Balachandran, Uthamalingam. Method for fabrication of ceramic dielectric films on copper foils. United States.
Ma, Beihai, Narayanan, Manoj, Dorris, Stephen E., and Balachandran, Uthamalingam. Wed . "Method for fabrication of ceramic dielectric films on copper foils". United States. https://www.osti.gov/servlets/purl/1363751.
@article{osti_1363751,
title = {Method for fabrication of ceramic dielectric films on copper foils},
author = {Ma, Beihai and Narayanan, Manoj and Dorris, Stephen E. and Balachandran, Uthamalingam},
abstractNote = {The present invention provides copper substrate coated with a lead-lanthanum-zirconium-titanium (PLZT) ceramic film, which is prepared by a method comprising applying a layer of a sol-gel composition onto a copper foil. The sol-gel composition comprises a precursor of a ceramic material suspended in 2-methoxyethanol. The layer of sol-gel is then dried at a temperature up to about 250.degree. C. The dried layer is then pyrolyzed at a temperature in the range of about 300 to about 450.degree. C. to form a ceramic film from the ceramic precursor. The ceramic film is then crystallized at a temperature in the range of about 600 to about 750.degree. C. The drying, pyrolyzing and crystallizing are performed under a flowing stream of an inert gas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {6}
}

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Works referenced in this record:

Amorphous dielectric capacitors on silicon
patent-application, August 2001


Light control unit
patent-application, June 2006


Lead zirconate titanate thin films directly on copper electrodes for ferroelectric, dielectric and piezoelectric applications
journal, February 2005


Importance Of Solution Chemistry In Preparing Sol–Gel PZT Thin Films Directly On Copper Surfaces
journal, January 2008


Chemical solution deposition of ferroelectric lead lanthanum zirconate titanate films on base-metal foils
journal, January 2008