Correlation between basicity and coordination structure in borosilicate glasses

Y. Tanaka, Y. Benino, T. Nanba, S. Sakida, Y. Mima

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Various quaternary borosilicate glasses in the general system M 2O-M'O-Al2O3-B2O3- SiO2 (M=Li, Naor K; M'=Ca, Sr or Ba) were prepared, and the concentration of four-fold coordinated boron (B4) atoms was determined using11B magic angle spinning NMR. Regression analyses were performed to predict the B4 fraction, in which B4 fraction and glass basicity were used as dependent and independent variables, respectively. Except for Al 2O3-containing glasses, regression formulae giving high correlation coefficients were successfully obtained by using B4/(B+Si×f) (where f is a tunable coefficient) as the dependent variable. As for the glasses containing Al2O3, however, the necessity of a different dependent variable was indicated.

Original languageEnglish
Pages (from-to)289-293
Number of pages5
JournalPhysics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B
Issue number5
Publication statusPublished - Oct 2009

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Materials Chemistry


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