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Title: All-Materials-Inclusive Flash Spark Plasma Sintering

Abstract

A new flash (ultra-rapid) spark plasma sintering method applicable to various materials systems, regardless of their electrical resistivity, is developed. A number of powders ranging from metals to electrically insulative ceramics have been successfully densified resulting in homogeneous microstructures within sintering times of 8–35 s. A finite element simulation reveals that the developed method, providing an extraordinary fast and homogeneous heating concentrated in the sample’s volume and punches, is applicable to all the different samples tested. The utilized uniquely controllable flash phenomenon is enabled by the combination of the electric current concentration around the sample and the confinement of the heat generated in this area by the lateral thermal contact resistance. The presented new method allows: extending flash sintering to nearly all materials, controlling sample shape by an added graphite die, and an energy efficient mass production of small and intermediate size objects. This approach represents also a potential venue for future investigations of flash sintering of complex shapes.

Authors:
 [1];  [1];  [1]
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  1. San Diego State Univ., San Diego, CA (United States)
Publication Date:
Research Org.:
San Diego State Univ., San Diego, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1500042
Grant/Contract Number:  
SC0008581
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Manière, Charles, Lee, Geuntak, and Olevsky, Eugene A. All-Materials-Inclusive Flash Spark Plasma Sintering. United States: N. p., 2017. Web. doi:10.1038/s41598-017-15365-x.
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Manière, Charles, Lee, Geuntak, & Olevsky, Eugene A. All-Materials-Inclusive Flash Spark Plasma Sintering. United States. doi:10.1038/s41598-017-15365-x.
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Manière, Charles, Lee, Geuntak, and Olevsky, Eugene A. Wed . "All-Materials-Inclusive Flash Spark Plasma Sintering". United States. doi:10.1038/s41598-017-15365-x. https://www.osti.gov/servlets/purl/1500042.
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@article{osti_1500042,
title = {All-Materials-Inclusive Flash Spark Plasma Sintering},
author = {Manière, Charles and Lee, Geuntak and Olevsky, Eugene A.},
abstractNote = {A new flash (ultra-rapid) spark plasma sintering method applicable to various materials systems, regardless of their electrical resistivity, is developed. A number of powders ranging from metals to electrically insulative ceramics have been successfully densified resulting in homogeneous microstructures within sintering times of 8–35 s. A finite element simulation reveals that the developed method, providing an extraordinary fast and homogeneous heating concentrated in the sample’s volume and punches, is applicable to all the different samples tested. The utilized uniquely controllable flash phenomenon is enabled by the combination of the electric current concentration around the sample and the confinement of the heat generated in this area by the lateral thermal contact resistance. The presented new method allows: extending flash sintering to nearly all materials, controlling sample shape by an added graphite die, and an energy efficient mass production of small and intermediate size objects. This approach represents also a potential venue for future investigations of flash sintering of complex shapes.},
doi = {10.1038/s41598-017-15365-x},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {2017},
month = {11}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI:  10.1038/s41598-017-15365-x
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Works referenced in this record:

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

  • Munir, Z. A.; Anselmi-Tamburini, U.; Ohyanagi, M.
  • Journal of Materials Science, Vol. 41, Issue 3, p. 763-777
  • DOI: 10.1007/s10853-006-6555-2

Consolidation/synthesis of materials by electric current activated/assisted sintering
journal, February 2009

  • Orrù, Roberto; Licheri, Roberta; Locci, Antonio Mario
  • Materials Science and Engineering: R: Reports, Vol. 63, Issue 4-6, p. 127-287
  • DOI: 10.1016/j.mser.2008.09.003

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

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

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

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