Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/9734
Title: Determination of niobium diffusion in titania and zirconia using secondary ion mass spectrometry
Authors: Sheppard, LR
Zhou, MF
Atanacio, AJ
Bak, T
Nowotny, J
Prince, KE
Keywords: Titanium
Mass spectroscopy
Spectroscopy
Niobium
Grain boundaries
Diffusion
Issue Date: 1-Jan-2007
Publisher: Taylor & Francis (Informa UK)
Citation: Sheppard, L. R., Zhou, M. F., Atanacio, A., Bak, T., Nowotny, J., & Prince, K. E. (2007). Determination of niobium diffusion in titania and zirconia using secondary ion mass spectrometry. Advances in applied ceramics, 106(1-2), 89-94. doi:10.1179/174367607X156043
Abstract: This paper provides an outline for the use of secondary ion mass spectrometry (SIMS) in the determination of diffusion data in metal oxides. The focus is on the determination of Nb bulk and grain boundary diffusion coefficients in TiO2 and zirconia. Specifically, the diffusion of Nb in TiO2 and yttria doped (10 mol.-%) ZrO2 (10YSZ) has been assessed. The following bulk diffusion coefficients D 93Nb were obtained D 93Nb =(1·03±0·051) × 10−18 m2 s−1 10YSZ(1273K) D 93Nb =(1·91±0·096) × 10−16 m2 s−1 TiO2(1273K) The grain boundary diffusion parameter for Nb grain boundary diffusion in 10YSZ was also determined D 93Nb δα =(7·48 ± 0·37) × 10−25 m2 s−1 10YSZ(1273K) The Nb grain boundary diffusion coefficient D′93Nb was determined to be D′93Nb =(3·99 ± 0·20) × 10−16 m2 s−1 10YSZ(1273K)© 2007 Informa UK Limited
Gov't Doc #: 9971
URI: https://doi.org/10.1179/174367607X156043
http://apo.ansto.gov.au/dspace/handle/10238/9734
ISSN: 1743-6753
Appears in Collections:Journal Articles

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