Controllable sealing of leaky alumina films on NiAl(100) surface by catalytic oxidation

Kuan Te Liu, Jian Wei Chen, Yu Wen Liao, Wen Chin Lin, Chii Bin Wu, Chien Cheng Kuo, Minn Tsong Lin, Ker Jar Song

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2 Citations (Scopus)

Abstract

We show the oxide films grown by saturated dosing of oxygen on NiAl(100) is leaky, i.e., it has no apparent effect blocking deposited Co from diffusion into the bulk. We then show the easy paths for diffusion (presumably the boundaries between the oxide stripes) can be sealed by an oxidation process catalyzed by Co nanoparticles. Once sealed, the temperature range in which Co nanoparticles persist on the surface is extended by 400 K (up to 1100 K). Such "leak tight" oxide films could serve as better corrosion barrier and insulting layers.

Original languageEnglish
Article number044310
JournalJournal of Applied Physics
Volume115
Issue number4
DOIs
Publication statusPublished - 2014 Jan 28

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Liu, K. T., Chen, J. W., Liao, Y. W., Lin, W. C., Wu, C. B., Kuo, C. C., Lin, M. T., & Song, K. J. (2014). Controllable sealing of leaky alumina films on NiAl(100) surface by catalytic oxidation. Journal of Applied Physics, 115(4), [044310]. https://doi.org/10.1063/1.4863406