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Title: Methods of flash sintering

This disclosure provides methods of flash sintering and compositions created by these methods. Methods for sintering multilayered bodies are provided in which a sintered body is produced in less than one minute. In one aspect, each layer is of a different composition, and may be constituted wholly from a ceramic or from a combination of ceramic and metallic particles. When the body includes a layer of an anode composition, a layer of an electrolyte composition and a layer of a cathode composition, the sintered body can be used to produce a solid oxide fuel cell.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1252455
Assignee:
The Regents of the University of Colorado, Denver, CO (United States) CHO
Patent Number(s):
9,334,194
Application Number:
14/319,631
Contract Number:
FG02-07ER46403
Resource Relation:
Patent File Date: 2014 Jun 30
Research Org:
The Regents of the University of Colorado, Denver, CO (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 30 DIRECT ENERGY CONVERSION

Other works cited in this record:

Flash Sintering of Nanograin Zirconia in <5 s at 850°C
journal, September 2010

Field assisted and flash sintering of alumina and its relationship to conductivity and MgO-doping
journal, December 2011

Flash-Sintering of Cubic Yttria-Stabilized Zirconia at 750°C for Possible Use in SOFC Manufacturing
journal, January 2011

Surface Diffusion-Controlled Neck Growth Kinetics in Early Stage Sintering of Zirconia, with and without Applied DC Electrical Field
journal, November 2010

A review of the optical properties of anion lattice vacancies, and electrical conduction in α-Al2O3: their relation to radiation-induced electrical degradation
journal, March 1995

Flash-Sinterforging of Nanograin Zirconia Field Assisted Sintering and Superplasticity
journal, September 2011

Particle size effects in flash sintering
journal, September 2012

Radiation enhanced electrical breakdown in Al2O3: field effect
journal, March 1992
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  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 65, Issue 1-4, p. 298-300
  • DOI: 10.1016/0168-583X(92)95054-U

The effect of electric field and pressure on the synthesis and consolidation of materials: A review of the spark plasma sintering method
journal, February 2006
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  • DOI: 10.1007/s10853-006-6555-2

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journal, February 2009
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  • DOI: 10.1016/j.mser.2008.09.003

Radiation-induced degradation of the intrinsic electrical conductivity of MgAl2O4 and Al2O3
journal, October 1991

Flash-sintering of Co2MnO4 spinel for solid oxide fuel cell applications
journal, February 2011

Estimate of the Activation Energies for Boundary Diffusion from Rate-Controlled Sintering of Pure Alumina, and Alumina Doped with Zirconia or Titania
journal, May 1990

Conduction Mechanism of Single-Crystal Alumina
journal, February 1992

Enhanced sintering rate of zirconia (3Y-TZP) by application of a small AC electric field
journal, August 2010

Flaw Generation During Constrained Sintering of Metal-Ceramic and Metal-Glass Multilayer Films
journal, September 1989

A newly-developed effective direct current assisted sintering technique for electrolyte film densification of anode-supported solid oxide fuel cells
journal, October 2012

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