Surface geometry of pure iridium oxidized at 1373 K in air

Z. B. Bao; H. Murakami; Y. Yamabe-Mitarai

doi:10.1016/j.apsusc.2011.09.121

Surface geometry of pure iridium oxidized at 1373 K in air

Z. B. Bao, H. Murakami, Y. Yamabe-Mitarai

Graduate School of Advanced Science and Engineering

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

The surface microstructure of a polished Ir sample during isothermal heat treatment at 1373 K in air was characterized. Various surface morphologies including triangular pits and terraces, "pyramid"-like plateaus and striated edges were observed. Changes in surface geometry were highly dependent on the original grain orientation. Most grains were confirmed to possess or partly exhibit a geometric configuration of {1 1 1} faceting habit, while periodic bond chain (PBC) vectors played an important role in determining the ultimate surface morphology. The mechanism and process of how these distinct surface morphologies formed are discussed.

Original language	English
Pages (from-to)	1514-1518
Number of pages	5
Journal	Applied Surface Science
Volume	258
Issue number	4
DOIs	https://doi.org/10.1016/j.apsusc.2011.09.121
Publication status	Published - 2011 Dec 1

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Keywords

Faceting
Iridium
Oxidation
Surface structure

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

Cite this

Bao, Z. B., Murakami, H., & Yamabe-Mitarai, Y. (2011). Surface geometry of pure iridium oxidized at 1373 K in air. Applied Surface Science, 258(4), 1514-1518. https://doi.org/10.1016/j.apsusc.2011.09.121

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Access to Document

10.1016/j.apsusc.2011.09.121