Depression of melting point for protective aluminum oxide films

E. L. Dreizin, D. J. Allen, N. G. Glumac

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The protective aluminum oxide film naturally formed on a surface of aluminum has a thickness in the range of 3-5 nm. Its melting causes loss of its continuity, which may significantly affect the ignition and combustion processes and their relative time scales. Melting of the alumina film also plays an important role when aluminum powders are used to prepare composites and/or being sintered. This letter quantifies depression of the melting point of an alumina film based on its nano-meter thickness. A theoretical estimate is supported by experiments relying on a detected change in the optical properties of naturally oxidized aluminum particles heated in an inert environment.

Original languageEnglish (US)
Pages (from-to)63-65
Number of pages3
JournalChemical Physics Letters
Volume618
DOIs
StatePublished - Jan 2 2015

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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