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

doi:10.1063/1.4863406

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^*

^*Corresponding author for this work

Department of Physics

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

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 language	English
Article number	044310
Journal	Journal of Applied Physics
Volume	115
Issue number	4
DOIs	https://doi.org/10.1063/1.4863406
Publication status	Published - 2014 Jan 28

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Controllable sealing of leaky alumina films on NiAl(100) surface by catalytic oxidation",

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.",

author = "Liu, {Kuan Te} and Chen, {Jian Wei} and Liao, {Yu Wen} and Lin, {Wen Chin} and Wu, {Chii Bin} and Kuo, {Chien Cheng} and Lin, {Minn Tsong} and Song, {Ker Jar}",

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doi = "10.1063/1.4863406",

language = "English",

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T1 - Controllable sealing of leaky alumina films on NiAl(100) surface by catalytic oxidation

AU - Liu, Kuan Te

AU - Chen, Jian Wei

AU - Liao, Yu Wen

AU - Lin, Wen Chin

AU - Wu, Chii Bin

AU - Kuo, Chien Cheng

AU - Lin, Minn Tsong

AU - Song, Ker Jar

PY - 2014/1/28

Y1 - 2014/1/28

N2 - 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.

AB - 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.

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JF - Journal of Applied Physics

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M1 - 044310

ER -

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

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