Network structure of RO·2B2O3 glasses

Y. Akasaka; I. Yasui; T. Nanba

Network structure of RO·2B₂O₃ glasses

Y. Akasaka, I. Yasui, T. Nanba

Research output: Contribution to journal › Article › peer-review

Abstract

A factor which determines the network structure of diborate glasses containing divalent cations was proposed on the basis of structural studies by a combination of diffraction methods (x-ray and neutron), computer simulation and Raman spectroscopy. Structural analysis revealed that the network of BaO·2B₂O₃ and PbO·2B₂O₃ glasses consisted of a rather complex structure, whereas the networks for R = Sr, Ca, Cd, Zn was similar to diborate groups. These results suggest that the factor determining the network structure is the size of divalent cations and the critical size is located between the size of Pb and Sr. These structure models were compared with other structural studies by NMR or Raman and the agreement was found to be quite satisfactory.

Original language	English
Pages (from-to)	232-237
Number of pages	6
Journal	Physics and Chemistry of Glasses
Volume	34
Issue number	6
Publication status	Published - Dec 1 1993
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
Physical and Theoretical Chemistry

Cite this

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AU - Yasui, I.

AU - Nanba, T.

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N2 - A factor which determines the network structure of diborate glasses containing divalent cations was proposed on the basis of structural studies by a combination of diffraction methods (x-ray and neutron), computer simulation and Raman spectroscopy. Structural analysis revealed that the network of BaO·2B2O3 and PbO·2B2O3 glasses consisted of a rather complex structure, whereas the networks for R = Sr, Ca, Cd, Zn was similar to diborate groups. These results suggest that the factor determining the network structure is the size of divalent cations and the critical size is located between the size of Pb and Sr. These structure models were compared with other structural studies by NMR or Raman and the agreement was found to be quite satisfactory.

AB - A factor which determines the network structure of diborate glasses containing divalent cations was proposed on the basis of structural studies by a combination of diffraction methods (x-ray and neutron), computer simulation and Raman spectroscopy. Structural analysis revealed that the network of BaO·2B2O3 and PbO·2B2O3 glasses consisted of a rather complex structure, whereas the networks for R = Sr, Ca, Cd, Zn was similar to diborate groups. These results suggest that the factor determining the network structure is the size of divalent cations and the critical size is located between the size of Pb and Sr. These structure models were compared with other structural studies by NMR or Raman and the agreement was found to be quite satisfactory.

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Network structure of RO·2B₂O₃ glasses

Abstract

ASJC Scopus subject areas

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