Measurement of O and Ti atom displacements in TiO2 during flash sintering experiments |
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| Authors: | Bola Yoon Devinder Yadav Rishi Raj Emanuele Sortino Sanjit Ghose Pankaj Sarin Daniel Shoemaker |
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| Affiliation: | 1. Materials Science and Engineering Program, Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado;2. Energy Sciences Directorate/Photon Science Division, NSLS II, Brookhaven National Laboratory, Upton, NewYork;3. School of Materials Science & Engineering, Oklahoma State University, Tulsa, Oklahoma;4. Department of Materials Science & Engineering, Materials Research Laboratory, University of Illinois, Urbana, Illinois |
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| Abstract: | In‐situ flash experiments on rutile TiO2 were performed at the synchrotron at the Brookhaven National Laboratory. Pair distribution function analysis of total X‐ray scattering measurements yielded mean‐square atomic displacements of oxygen and titanium atoms during the progression of the 3 stages of flash. The displacements are measured to be far greater for oxygen atoms than for titanium atoms. These large displacements may signal an “elastic softening” of the lattice, which, recently, has been predicted as a precursor to the onset of flash. |
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| Keywords: | sinter/sintering spark plasma sintering X‐ray methods |
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