Thermal expansion of Al3Sc and Al3(Sc0.75X0.25)

Y. Harada, D. C. Dunand*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

80 Scopus citations


The thermal expansion coefficient of Al3Sc and Al3(Sc0.75X0.25), where X is Ti, Y, Zr or Hf, was measured by dilatometry between 25 and 1000 °C. The measured value, (16±1) × 10-6 K-1, is constant between 25 and 900 °C and insensitive to alloying element. Good agreement is found with a literature value determined from first-principle calculations.

Original languageEnglish (US)
Pages (from-to)219-222
Number of pages4
JournalScripta Materialia
Issue number3
StatePublished - Feb 2003


  • Aluminum alloys
  • Intermetallic compound
  • Scandium
  • Thermal expansion

ASJC Scopus subject areas

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


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