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Title: Measurement of O and Ti atom displacements in TiO 2 during flash sintering experiments

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. Thus, these large displacements may signal an “elastic softening” of the lattice, which, recently, has been predicted as a precursor to the onset of flash.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [1];  [2];  [3]; ORCiD logo [4]
  1. Univ. of Colorado, Boulder, CO (United States). Materials Science and Engineering Program and Dept. of Mechanical Engineering
  2. Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II). Energy Sciences Directorate/Photon Science Division
  3. Oklahoma State Univ., Tulsa, OK (United States). School of Materials Science and Engineering
  4. Univ. of Illinois, Urbana, IL (United States). Dept. of Materials Science and Engineering
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); US Dept. of the Navy, Office of Naval Research (ONR); US Army Research Office (ARO)
OSTI Identifier:
1426460
Alternate Identifier(s):
OSTI ID: 1415153
Report Number(s):
BNL-203349-2018-JAAM
Journal ID: ISSN 0002-7820; TRN: US1802288
Grant/Contract Number:  
SC0012704; N00014‐15‐1‐2505; W911NF‐17‐1‐0142; AC02-98CH10886
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the American Ceramic Society
Additional Journal Information:
Journal Volume: 101; Journal Issue: 5; Journal ID: ISSN 0002-7820
Publisher:
American Ceramic Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; sinter; sintering; spark plasma sintering; X-ray methods

Citation Formats

Yoon, Bola, Yadav, Devinder, Raj, Rishi, Sortino, Emanuele P., Ghose, Sanjit, Sarin, Pankaj, and Shoemaker, Daniel. Measurement of O and Ti atom displacements in TiO 2 during flash sintering experiments. United States: N. p., 2017. Web. doi:10.1111/jace.15375.
Yoon, Bola, Yadav, Devinder, Raj, Rishi, Sortino, Emanuele P., Ghose, Sanjit, Sarin, Pankaj, & Shoemaker, Daniel. Measurement of O and Ti atom displacements in TiO 2 during flash sintering experiments. United States. doi:10.1111/jace.15375.
Yoon, Bola, Yadav, Devinder, Raj, Rishi, Sortino, Emanuele P., Ghose, Sanjit, Sarin, Pankaj, and Shoemaker, Daniel. Fri . "Measurement of O and Ti atom displacements in TiO 2 during flash sintering experiments". United States. doi:10.1111/jace.15375. https://www.osti.gov/servlets/purl/1426460.
@article{osti_1426460,
title = {Measurement of O and Ti atom displacements in TiO 2 during flash sintering experiments},
author = {Yoon, Bola and Yadav, Devinder and Raj, Rishi and Sortino, Emanuele P. and Ghose, Sanjit and Sarin, Pankaj and Shoemaker, Daniel},
abstractNote = {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. Thus, these large displacements may signal an “elastic softening” of the lattice, which, recently, has been predicted as a precursor to the onset of flash.},
doi = {10.1111/jace.15375},
journal = {Journal of the American Ceramic Society},
number = 5,
volume = 101,
place = {United States},
year = {2017},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 12 works
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Figures / Tables:

Figure 1: Figure 1:: Experimental set-up for in-situ flash experiments at NSLS-II.

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