Internal oxidation of laminated Nb–Ru coatings

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

3 Scopus Citations
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Author(s)

  • Yung-I Chen
  • Hsiu-Nuan Chu
  • Wu Kai

Detail(s)

Original languageEnglish
Pages (from-to)477-483
Journal / PublicationApplied Surface Science
Volume389
Online published28 Jul 2016
Publication statusPublished - 15 Dec 2016
Externally publishedYes

Abstract

A direct current magnetron cosputtering system was used to deposit Nb–Ru coatings with various chemical compositions onto silicon wafers. The Nb–Ru coatings exhibited distinct nanolaminated structures because of the cyclical gradient concentration deposition. The oxidized Nb–Ru coatings formed oxide and metal multilayers when they experienced internal oxidation at 400–600 °C in a 1% O2–99% Ar atmosphere. A two-stage parabolic-rate law was obeyed for the Nb0.49Ru0.51 coatings oxidized at 350–550 °C in 1% O2–99% Ar. The activation energies in the two-stage oxidation, dominated by oxygen dissolution and oxide formation, were calculated at 88 and 127 kJ/mol, respectively.

Research Area(s)

  • Annealing, Internal oxidation, Nanolaminated structure, Nb–Ru

Citation Format(s)

Internal oxidation of laminated Nb–Ru coatings. / Chen, Yung-I; Chu, Hsiu-Nuan; Kai, Wu.

In: Applied Surface Science, Vol. 389, 15.12.2016, p. 477-483.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal