Brillouin spectra and structural relaxation in ZnCl2–KCl binary melts

Hongmin Zhu, Katsuyuki Iwabuchi, Yuzuru Sato, Tsutomu Yamamura

Research output: Contribution to journalArticlepeer-review


The Brillouin scattering experiment has been carried out for molten ZnCl2-KCl binary melts over the composition range 0–45 mol% KCl. The complete profiles of Rayleigh-Brillouin spectra were obtained at scattering angle of 90°, and at temperatures ranging from 550 to 1000 K by the use of carefully purified samples. Marked change in the shape of the spectrum with variations in temperature and composition has been observed and has been concluded to be due to structural relaxation in the melts. A dispersion of sound wave propagation was observed in the melts in the hypersonic region. The spectra have been analyzed based on the viscoelastic theory on the assumption of single relaxation. The sound velocities at the limiting low and high frequencies and the relaxation time have been determined.

Original languageEnglish
Pages (from-to)3220-3225
Number of pages6
JournalJapanese journal of applied physics
Issue number5S
Publication statusPublished - 1994 May


  • Brillouin scattering
  • Brillouin spectrum
  • Chloride
  • Light scattering
  • Molten salt
  • Potassium
  • Relaxation
  • Zinc chloride

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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