Density and surface tension of M2O-TeO2(M = Li, Na and K) melts

Shinichiro Haruki, Hirofumi Tokunaga, Sohei Sukenaga, Noritaka Saito, Kunihiko Nakashima

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Abstract

The density and the surface tension of the binary tellurite melts, (M 2O-TeO2 M = Li, Na and K) were measured. We investigated the thermal and compositional dependences of the properties. It was found that the density and the surface tension of the binary tellurite melts decreased with increasing temperature and M2O content. The dependences of the density and the surface tension were attributed to the behavior of added cation and the structural change of melt. It was thought that the added cation intruded into the interspace of the complex tellurite anion, and molar volume decreased, when the radius of added cation was small. TeO4 trigonal bipyramid changes to TeO4" trigonal bipyramid and TeO3 trigonal pyramid with increasing temperature and M2O content. We explained that the dependences of the density and the surface tension on the behavior of added cation and the structural change of melt.

Original languageEnglish
Pages (from-to)629-634
Number of pages6
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume74
Issue number10
DOIs
Publication statusPublished - Oct 2010

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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