Isolating the role of charge localization in chemical expansion: (La,Sr)(Ga,Ni)O3-x case study

N. H. Perry; J. E. Thomas; D. Marrocchelli; S. R. Bishop; H. L. Tuller

doi:10.1149/05701.1879ecst

Isolating the role of charge localization in chemical expansion: (La,Sr)(Ga,Ni)O_3-x case study

N. H. Perry
, J. E. Thomas
, D. Marrocchelli
, S. R. Bishop
, H. L. Tuller

Research output: Contribution to journal › Article › peer-review

Abstract

The influence of electron localization on the chemical expansion coefficient was examined experimentally, using a model electrode material, (La,Sr)(Ga,Ni)O₃-δ. Varying the Ni content yielded differing degrees of electron localization with resultant chemical expansion coefficients evaluated by dilatometry and thermogravimetric analysis in N₂/O ₂ mixtures at 800 °C. In agreement with prior computational predictions, a decrease in chemical expansion coefficient was observed with electron delocalization.

Original language	English (US)
Pages (from-to)	1879-1884
Number of pages	6
Journal	ECS Transactions
Volume	57
Issue number	1
DOIs	https://doi.org/10.1149/05701.1879ecst
State	Published - 2013
Externally published	Yes

ASJC Scopus subject areas

General Engineering

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10.1149/05701.1879ecst

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Cite this

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abstract = "The influence of electron localization on the chemical expansion coefficient was examined experimentally, using a model electrode material, (La,Sr)(Ga,Ni)O3-δ. Varying the Ni content yielded differing degrees of electron localization with resultant chemical expansion coefficients evaluated by dilatometry and thermogravimetric analysis in N2/O 2 mixtures at 800 °C. In agreement with prior computational predictions, a decrease in chemical expansion coefficient was observed with electron delocalization.",

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