Title: Onset Criterion for Flash Sintering

Journal Article · · Journal of the American Ceramic Society
DOI: https://doi.org/10.1111/jace.13866 · OSTI ID:1400933
 [1];  [1];
  1. Department of Materials Science and Engineering University of Pennsylvania Philadelphia Pennsylvania 19104‐6272

When the sample temperature is warm enough so that the Joule heating takes over the environment's radiation heating as the dominant heating means, thermal runaway follows and flash sintering is triggered. This condition accurately predicts the reported onset temperature T on of all the constant‐field ( E ) experiments on flash sintering, performed under a constant heating rate. The predicted linear ln( E 2 / T on 4 ) versus T on −1 relation determines the activation energy and the relative ranking of the electrical conductivity of the tested materials.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0007064
OSTI ID:
1400933
Journal Information:
Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 12 Vol. 98; ISSN 0002-7820
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
United States
Language:
English

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