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Title: On the synchronicity of flash sintering and phase transformation

Abstract

There is growing evidence that oxides of complex chemistries can be formed in one step by reactive flash sintering of their elemental constituents. We explore the temporal relationship between phase transformation and sintering by combining measurements of sintering with in situ measurements of phase transformation. The experiments are carried out under current rate, where flash is induced by injecting current and increasing it at a constant rate. We show that phase transformation of powders of magnesia and α-alumina into single-phase magnesium aluminate spinel was completed in 45 seconds, whereas sintering to full density required 60 seconds.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [1]
  1. Univ. of Colorado, Boulder, CO (United States). Dept. of Mechanical Engineering. Materials Science and Engineering Program
  2. Univ. of Colorado, Boulder, CO (United States). Dept. of Mechanical Engineering. Materials Science and Engineering Program; Indian Inst. of Technology Patna (India). Dept. of Metallurgical and Materials Engineering
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II
  4. Oklahoma State Univ., Tulsa, OK (United States). School of Materials Science and Engineering
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Colorado, Boulder, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC); US Army Research Office (ARO)
OSTI Identifier:
1498863
Alternate Identifier(s):
OSTI ID: 1494859
Report Number(s):
BNL-211353-2019-JAAM
Journal ID: ISSN 0002-7820
Grant/Contract Number:  
SC0012704; W911NF-16-1-0200; DE‐AC02‐98CH10886; DE‐SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the American Ceramic Society
Additional Journal Information:
Journal Volume: 102; Journal Issue: 6; Journal ID: ISSN 0002-7820
Publisher:
American Ceramic Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Yoon, Bola, Yadav, Devinder, Ghose, Sanjit, Sarin, Pankaj, and Raj, Rishi. On the synchronicity of flash sintering and phase transformation. United States: N. p., 2019. Web. doi:10.1111/jace.16335.
Yoon, Bola, Yadav, Devinder, Ghose, Sanjit, Sarin, Pankaj, & Raj, Rishi. On the synchronicity of flash sintering and phase transformation. United States. doi:10.1111/jace.16335.
Yoon, Bola, Yadav, Devinder, Ghose, Sanjit, Sarin, Pankaj, and Raj, Rishi. Wed . "On the synchronicity of flash sintering and phase transformation". United States. doi:10.1111/jace.16335. https://www.osti.gov/servlets/purl/1498863.
@article{osti_1498863,
title = {On the synchronicity of flash sintering and phase transformation},
author = {Yoon, Bola and Yadav, Devinder and Ghose, Sanjit and Sarin, Pankaj and Raj, Rishi},
abstractNote = {There is growing evidence that oxides of complex chemistries can be formed in one step by reactive flash sintering of their elemental constituents. We explore the temporal relationship between phase transformation and sintering by combining measurements of sintering with in situ measurements of phase transformation. The experiments are carried out under current rate, where flash is induced by injecting current and increasing it at a constant rate. We show that phase transformation of powders of magnesia and α-alumina into single-phase magnesium aluminate spinel was completed in 45 seconds, whereas sintering to full density required 60 seconds.},
doi = {10.1111/jace.16335},
journal = {Journal of the American Ceramic Society},
number = 6,
volume = 102,
place = {United States},
year = {2019},
month = {1}
}

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Cited by: 7 works
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Works referenced in this record:

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    Works referencing / citing this record:

    Liquid-Film Assisted Mechanism of Reactive Flash Sintering in Oxide Systems
    journal, May 2019


    Liquid-Film Assisted Mechanism of Reactive Flash Sintering in Oxide Systems
    journal, May 2019


    Reactive flash sintering of powders of four constituents into a single phase of a complex oxide in a few seconds below 700°C
    journal, May 2019

    • Avila, Viviana; Raj, Rishi
    • Journal of the American Ceramic Society, Vol. 102, Issue 11
    • DOI: 10.1111/jace.16625