The role of fluctuations on the electrical resistivity and atomic volume for some liquid alloys with critical mixing

Tadahiko Masaki, T. Onogi, K. Ogura, I. Kudo, T. Itami

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The electrical resistivity, ρ, was measured by the dc four probe method for some liquid alloys with critical mixing, that is Bi-Ga, Cd-Ga and Hg-Ga alloys. The maximum of temperature coefficient of ρ, dρ/dT, was found at the critical composition, Xc, on the isotherm for liquid Bi-Ga and Cd-Ga alloys. This tendency becomes far striking at the critical temperature Tc. However, an opposite minimum behavior of dρ/dT was found at Xc for liquid Hg-Ga alloys. The atomic volume, VM, was also measured by a picnometer method for liquid Bi-Ga alloys. The obtained VM is a linear function of composition. The value of thermal expansion coefficient, αp, near Xc is large and shows a strong temperature dependence. The critical exponent β for liquid Bi-Ga alloys is determined to be 0.365 ± 0.02 in the range, 5.6 × 10-5 ≤ ∈(=|T-Tc|/Tc) ≤ 7.5 × 10-2 from the binodal curve determined by resistivity measurements on heating with mixing by agitations.

Original languageEnglish
Pages (from-to)338-341
Number of pages4
JournalJournal of Non-Crystalline Solids
Volume205-207
Issue number1
DOIs
Publication statusPublished - 1996 Oct
Externally publishedYes

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liquid alloys
electrical resistivity
Liquids
liquids
agitation
coefficients
thermal expansion
Chemical analysis
critical temperature
isotherms
tendencies
Temperature
Thermal expansion
Isotherms
exponents
temperature dependence
heating
Heating
curves

ASJC Scopus subject areas

  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

Cite this

The role of fluctuations on the electrical resistivity and atomic volume for some liquid alloys with critical mixing. / Masaki, Tadahiko; Onogi, T.; Ogura, K.; Kudo, I.; Itami, T.

In: Journal of Non-Crystalline Solids, Vol. 205-207, No. 1, 10.1996, p. 338-341.

Research output: Contribution to journalArticle

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AU - Itami, T.

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