Glass formation and transition temperatures in sodium and lithium borate and aluminoborate melts up to 72 mol.% alkali

S. W. Martin, Charles Angell

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

We report continuous glass formation and glass transition temperatures Tg for the pseudo-binary systems xM2O (1 - x) (0.87B2O30.13Al2O3) to x = 0.675 for M = Na and 0.575 for M = Li. A dependence of both Tg and glass-forming range on starting materials is found at high alkali contents, and attributed to retained CO2. Maxima in Tg for both binary and pseudo-binary systems are quantitatively described in terms of two effects: (i) creation of 4-coordinated borons (increasing Tg), and (ii) creation of non-bridging [BO3] oxygens (decreasing Tg. To first approximation we find the latter imparting a stronger effect on Tg.

Original languageEnglish (US)
Pages (from-to)429-442
Number of pages14
JournalJournal of Non-Crystalline Solids
Volume66
Issue number3
DOIs
StatePublished - Aug 2 1984
Externally publishedYes

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lithium borates
Alkalies
borates
Superconducting transition temperature
alkalies
Lithium
transition temperature
Sodium
sodium
Glass
glass
glass transition temperature
Oxygen
temperature
oxygen
approximation
Borates
sodium borate
lithium borate
Glass transition temperature

ASJC Scopus subject areas

  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Engineering(all)

Cite this

Glass formation and transition temperatures in sodium and lithium borate and aluminoborate melts up to 72 mol.% alkali. / Martin, S. W.; Angell, Charles.

In: Journal of Non-Crystalline Solids, Vol. 66, No. 3, 02.08.1984, p. 429-442.

Research output: Contribution to journalArticle

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