ECI Digital Archives

Title

Unusual atom displacements in TiO2 during flash sintering

Authors

Bola Yoon, University of Colorado Boulder, USAFollow
Devinder Yadav, University of Colorado Boulder
Rishi Raj, University of Colorado Boulder
Sanjit Ghose, Brookhaven National Laboratory
Pankaj Sarin, Oklahoma State University
Daniel Shoemaker, University of Illinois

Conference Dates

March 10-15, 2019

Abstract

We report on in-situ measurements of displacements for Ti and O atoms within a TiO₂ unit cell during flash sintering, where one species (O) moves much more than the other. The heart of these investigations is focused on the hypothesis that colossal concentrations of defects, in the form of Frenkel pairs are generated which lead to abnormal kinetics of diffusion and phase transformations. These experiments will continue to provide new information which can be built into atomistic simulations to provide a scientific basis for the flash phenomena.

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Recommended Citation

Bola Yoon, Devinder Yadav, Rishi Raj, Sanjit Ghose, Pankaj Sarin, and Daniel Shoemaker, "Unusual atom displacements in TiO2 during flash sintering" in "Electric Field Enhanced Processing of Advanced Materials II: Complexities and Opportunities", Rishi Raj, University of Colorado, USA Olivier Guillon, Forschungzentrum Jülich, Germany Hidehiro Yoshida, National Institute for Materials Science, Japan Eds, ECI Symposium Series, (2019). https://dc.engconfintl.org/efe_advancedmaterials_ii/17