Direct evidence for the modulation caused by Ti substitution of Ta in a (Ta 2 O 5)0.92(TiO 2)0.08 ceramic by analytical electron microscopy

Xiaodong Wang; Jian Min Zuo; Hefei Hu; Yonghua Rong

doi:10.1111/jace.12758

Direct evidence for the modulation caused by Ti substitution of Ta in a (Ta ₂ O ₅)_0.92(TiO ₂)_0.08 ceramic by analytical electron microscopy

Xiaodong Wang, Jian Min Zuo, Hefei Hu, Yonghua Rong

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

Abstract

The high-temperature tetragonal structure of Ta₂O₅ was observed in a Ta₂O₅ ceramic sample doped with 8 at.% TiO₂. Direct evidences for the modulation along [1̄10] direction caused by Ti replacing Ta are obtained based on atomic-resolution high-angle annular dark-field lattice imaging and electron energy loss spectroscopy analysis. The atomic mechanism of Ti substitution of Ta is explicitly described based on the structure model along [110] direction projection.

Original language	English (US)
Pages (from-to)	350-353
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	97
Issue number	2
DOIs	https://doi.org/10.1111/jace.12758
State	Published - Feb 2014

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Online availability

10.1111/jace.12758

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Cite this

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title = "Direct evidence for the modulation caused by Ti substitution of Ta in a (Ta 2 O 5)0.92(TiO 2)0.08 ceramic by analytical electron microscopy",

abstract = "The high-temperature tetragonal structure of Ta2O5 was observed in a Ta2O5 ceramic sample doped with 8 at.% TiO2. Direct evidences for the modulation along [{\=1}10] direction caused by Ti replacing Ta are obtained based on atomic-resolution high-angle annular dark-field lattice imaging and electron energy loss spectroscopy analysis. The atomic mechanism of Ti substitution of Ta is explicitly described based on the structure model along [110] direction projection.",

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AU - Wang, Xiaodong

AU - Zuo, Jian Min

AU - Hu, Hefei

AU - Rong, Yonghua

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AB - The high-temperature tetragonal structure of Ta2O5 was observed in a Ta2O5 ceramic sample doped with 8 at.% TiO2. Direct evidences for the modulation along [1̄10] direction caused by Ti replacing Ta are obtained based on atomic-resolution high-angle annular dark-field lattice imaging and electron energy loss spectroscopy analysis. The atomic mechanism of Ti substitution of Ta is explicitly described based on the structure model along [110] direction projection.

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