Effects of electrostatic field strength on grain‐boundary core structures in SrTiO 3

Hughes, Lauren A.; van Benthem, Klaus

doi:10.1111/jace.16344

Title: Effects of electrostatic field strength on grain‐boundary core structures in SrTiO ₃

Abstract

Abstract Understanding interactions between externally applied electric fields and the interfacial structures of nanoscale ceramics is important for controlling their functional properties. In ceramic oxides, functional properties are determined by oxygen vacancy concentrations near and within grain‐boundary core structures. In this study it is shown that the application of electrostatic fields ranging from 0 to nominally 170 V/cm during diffusion bonding of bicrystals alters the atomic and electronic core structures of (100) twist grain boundaries in SrTiO ₃ . The applied electric field strength affects local oxygen vacancy concentrations and ordering of the oxygen sublattice. Results for this model system indicate that electrostatic fields applied during ceramic manufacturing can be employed as a new processing parameter to tailor defect structure configurations and obtain unprecedented ceramic microstructures. The ability to manipulate interface configurations with electric fields in the absence of any sintering additives may have far reaching implications for tuning polarization and band structures in electroceramics while avoiding effects of often unwanted dopants.

Authors:

Hughes, Lauren A. ^[1];

^[1]

Department of Materials Science and Engineering University of California Davis California

Publication Date:: Mon Feb 25 00:00:00 EST 2019

Sponsoring Org.:: USDOE

OSTI Identifier:: 1496647

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Journal of the American Ceramic Society

Additional Journal Information:: Journal Name: Journal of the American Ceramic Society Journal Volume: 102 Journal Issue: 8; Journal ID: ISSN 0002-7820

Publisher:: Wiley-Blackwell

Country of Publication:: United States

Language:: English

Citation Formats


                    Hughes, Lauren A., and van Benthem, Klaus. Effects of electrostatic field strength on grain‐boundary core structures in SrTiO 3.  United States: N. p., 2019. 
Web.  doi:10.1111/jace.16344.

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                    Hughes, Lauren A., & van Benthem, Klaus. Effects of electrostatic field strength on grain‐boundary core structures in SrTiO 3.  United States.  https://doi.org/10.1111/jace.16344

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                    Hughes, Lauren A., and van Benthem, Klaus. Mon .  
"Effects of electrostatic field strength on grain‐boundary core structures in SrTiO 3".  United States.  https://doi.org/10.1111/jace.16344.

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@article{osti_1496647,

  title        = {Effects of electrostatic field strength on grain‐boundary core structures in SrTiO 3},

  author       = {Hughes, Lauren A. and van Benthem, Klaus},

  abstractNote = {Abstract Understanding interactions between externally applied electric fields and the interfacial structures of nanoscale ceramics is important for controlling their functional properties. In ceramic oxides, functional properties are determined by oxygen vacancy concentrations near and within grain‐boundary core structures. In this study it is shown that the application of electrostatic fields ranging from 0 to nominally 170 V/cm during diffusion bonding of bicrystals alters the atomic and electronic core structures of (100) twist grain boundaries in SrTiO 3 . The applied electric field strength affects local oxygen vacancy concentrations and ordering of the oxygen sublattice. Results for this model system indicate that electrostatic fields applied during ceramic manufacturing can be employed as a new processing parameter to tailor defect structure configurations and obtain unprecedented ceramic microstructures. The ability to manipulate interface configurations with electric fields in the absence of any sintering additives may have far reaching implications for tuning polarization and band structures in electroceramics while avoiding effects of often unwanted dopants.},

  doi          = {10.1111/jace.16344},

  journal      = {Journal of the American Ceramic Society},

  number       = 8,

  volume       = 102,

  place        = {United States},

  year         = {Mon Feb 25 00:00:00 EST 2019},

  month        = {Mon Feb 25 00:00:00 EST 2019}

}

Copy to clipboard

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Title: Effects of electrostatic field strength on grain‐boundary core structures in SrTiO 3

Abstract

Citation Formats

Localized Metallic Conductivity and Self-Healing during Thermal Reduction of SrTiO 3 journal, February 2002

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Direct Determination of Grain Boundary Atomic Structure in SrTiO3 journal, October 1994

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Migration-induced field-stabilized polar phase in strontium titanate single crystals at room temperature journal, July 2013

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Review of flash sintering: materials, mechanisms and modelling journal, December 2016

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Atomic and electronic characterization of the a [ 100 ] dislocation core in SrTiO 3 journal, September 2002

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Grain boundary engineering: historical perspective and future prospects journal, March 2011

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Electric Current Activation of Sintering: A Review of the Pulsed Electric Current Sintering Process: Electric Current Activation of Sintering journal, November 2010

Behavior of oxygen vacancies in single-crystal SrTiO 3 : Equilibrium distribution and diffusion kinetics journal, May 2012

Electric field assisted bonding of ceramics journal, August 2000

Influence of Externally Imposed and Internally Generated Electrical Fields on Grain Growth, Diffusional Creep, Sintering and Related Phenomena in Ceramics journal, July 2011

Calcium Concentration Dependence of the Intergranular Film Thickness in Silicon Nitride journal, April 1994

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Title: Effects of electrostatic field strength on grain‐boundary core structures in SrTiO ₃

Localized Metallic Conductivity and Self-Healing during Thermal Reduction of ${SrTiO}_{3}$
journal, February 2002

Electric field mediated switching of mechanical properties of strontium titanate at room temperature
journal, January 2010

DC Electric Field-Enhanced Grain-Boundary Mobility in Magnesium Aluminate During Annealing
journal, March 2016

Atomic-scale imaging of nanoengineered oxygen vacancy profiles in SrTiO3
journal, August 2004

Direct Determination of Grain Boundary Atomic Structure in SrTiO3
journal, October 1994

Grain growth in weak electric fields in strontium titanate: Grain growth acceleration by defect redistribution
journal, September 2016

Grain Boundary Defect Chemistry of Acceptor-Doped Titanates: Space Charge Layer Width
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Resistance switching effect in Nb-doped SrTiO3 (100) bicrystal with (100) ∼45° twist boundary
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Bonding and structure of a reconstructed (001) surface of SrTiO3 from TEM
journal, October 2012

Delocalization of the effective interaction for inner-shell ionization in crystals
journal, February 1998

Migration-induced field-stabilized polar phase in strontium titanate single crystals at room temperature
journal, July 2013

The effect of electric field and pressure on the synthesis and consolidation of materials: A review of the spark plasma sintering method
journal, February 2006

Electrostatic fields control grain boundary structure in SrTiO ₃
journal, July 2018

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journal, March 1978

Flash-Sintering of Cubic Yttria-Stabilized Zirconia at 750°C for Possible Use in SOFC Manufacturing
journal, January 2011

Strontium titanate: An all-in-one rechargeable energy storage material
journal, December 2014

Switching Ti Valence in ${SrTiO}_{3}$ by a dc Electric Field
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Review of flash sintering: materials, mechanisms and modelling
journal, December 2016

Electrical breakdown and ESD phenomena for devices with nanometer-to-micron gaps
conference, January 2003

Atomic and electronic characterization of the $a [100]$ dislocation core in ${SrTiO}_{3}$
journal, September 2002

Oxygen ion diffusion in single crystal SrTiO3
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Consolidation of Partially Stabilized ${ZrO}_{2}$ in the Presence of a Noncontacting Electric Field
journal, May 2015

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journal, April 2010

Current-Voltage Characteristics Across Small Angle Symmetric Tilt Boundaries in Nb-Doped SrTiO<SUB>3</SUB> Bicrystals
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Valence electron energy loss study of Fe-doped SrTiO3 and a Σ13 boundary: electronic structure and dispersion forces
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Grain boundary engineering: historical perspective and future prospects
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journal, January 2006

Electron energy-loss near-edge structures at the oxygen K edges of titanium(IV) oxygen compounds
journal, March 1992

Electric Current Activation of Sintering: A Review of the Pulsed Electric Current Sintering Process: Electric Current Activation of Sintering
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Influence of Externally Imposed and Internally Generated Electrical Fields on Grain Growth, Diffusional Creep, Sintering and Related Phenomena in Ceramics
journal, July 2011

Calcium Concentration Dependence of the Intergranular Film Thickness in Silicon Nitride
journal, April 1994

Core-hole effects on the ELNES of absorption edges in SrTiO3
journal, September 2003

Dislocation Dependence of Cationic Diffusion in SrTiO3
journal, October 1966