Relationship between thermal expansion coefficient and glass transition temperature in metallic glasses

H. Kato, H. S. Chen, A. Inoue

Research output: Contribution to journalArticlepeer-review

76 Citations (Scopus)

Abstract

The thermal expansion coefficients of 13 metallic glasses were measured using a thermo-mechanical analyser. A unique correlation was found between the linear thermal expansion coefficient and the glass transition temperature-their product is nearly constant ∼8.24 × 10-3. If one assumes the Debye expression for thermal activation, the total linear thermal expansion up to glass transition temperature (Tg) is reduced to 6 × 10-3, nearly 25% of that at the fusion of pure metals.

Original languageEnglish
Pages (from-to)1106-1109
Number of pages4
JournalScripta Materialia
Volume58
Issue number12
DOIs
Publication statusPublished - 2008 Jun 1

Keywords

  • Metallic glass
  • Thermal expansion coefficient
  • Thermally activated process

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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