Novel method for the prediction of an interface bonding species at alumina/metal interfaces

Michiko Yoshitake, Shinjiro Yagyu, Toyohiro Chikyow

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Interface bonding between alumina and various metals is discussed from the viewpoint of chemical thermodynamics. A method to predict the interface bonding species at an alumina/metal interface under equilibrium conditions is proposed by using the concept of chemical equilibrium for interface termination. The originality of this method is in the way a simple estimation of the interface binding energy, which is generally applicable to most metals, is developed. The effectiveness of this method is confirmed by careful examination of the experimental results. Comparison of the predicted and experimentally observed interface terminations reveals that the proposed method agrees well with the reported results. The method uses only basic quantities of pure elements and the formation enthalpy of oxides. Therefore, it can be applied to most metals in the periodic table and is useful for screening materials in the quest to develop interfaces with particular functions.

Original languageEnglish
Article number021102
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume32
Issue number2
DOIs
Publication statusPublished - 2014 Mar 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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