Activity measurement of the constituents in molten Sn-Mg-Zn ternary lead free solder alloys by mass spectrometry

Naotaka Ogawa, Takahiro Miki, Tetsuya Nagasaka, Mitsutaka Hino

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Activities of the constituents in an alloy proposed for the Pb-free solder, Sn-Mg-Zn, were studied experimentally using a mass spectrometer. The ion current ratios of Mg to Zn were measured in the temperature range 700-800 K. From the experimental results and the assessed thermodynamic properties of molten Sn-Mg, Sn-Zn, and Mg-Zn binary alloys, the excess Gibbs free energy of liquid Sn-Mg-Zn ternary alloy was determined. Also, phase diagram of Sn-Mg-Zn ternary system was determined.

Original languageEnglish
Pages (from-to)3227-3233
Number of pages7
JournalMaterials Transactions
Volume43
Issue number12
DOIs
Publication statusPublished - 2002 Dec

Keywords

  • Activity
  • Excess Gibbs free energy
  • Interaction parameter
  • Lead-free solder
  • Mass spectrometry
  • Phase diagram
  • Thermodynamics
  • Tin-magnesium-zinc ternary alloy

ASJC Scopus subject areas

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

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