Pulsed neutron diffraction studies of RO.xB2O3 glasses: R=Ca, Sr and Ba; x=2, 3 and 4

Y. Suzuki, N. Ohtori, K. Takase, K. Handa, Keiji Itoh, T. Fukunaga, N. Umesaki

Research output: Contribution to journalArticle

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Abstract

Pulsed neutron diffraction experiments were performed on SrO.xB 2O3 (x=2, 3 and 4) and Na2O.xB 2O3 (x=7/3, 4 and 9) glasses. With the help of molecular dynamics (MD) simulation using simple isotropic pair potentials, the cation dependence of the short range structure is discussed in order to investigate the role of metal oxides. Previous results for calcium and barium borate glasses have also been modified using improved analytical methods. For alkaline earth oxides, the fraction of B atoms coordinated by four nearest neighbour O atoms shows that the number of four coordinated B atoms in the alkaline earth borate glasses increases with increasing cation size, whereas that in alkali borate glasses decreases with increasing cation size. On the other hand, there are only small differences between sodium and alkaline earth borate glasses in the cation dependence of the other parameters such as the peak position and asymmetry of the BO correlation. Results from neutron diffraction experiments are in good agreement with those from MD calculations.

Original languageEnglish
Pages (from-to)150-154
Number of pages5
JournalPhysics and Chemistry of Glasses
Volume44
Issue number2
Publication statusPublished - Apr 2003
Externally publishedYes

Fingerprint

Neutron diffraction
neutron diffraction
borates
Borates
Cations
Glass
Positive ions
glass
cations
Earth (planet)
Atoms
Oxides
Molecular dynamics
alkaline earth oxides
molecular dynamics
atoms
Alkalies
Barium
barium
metal oxides

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Ceramics and Composites

Cite this

Suzuki, Y., Ohtori, N., Takase, K., Handa, K., Itoh, K., Fukunaga, T., & Umesaki, N. (2003). Pulsed neutron diffraction studies of RO.xB2O3 glasses: R=Ca, Sr and Ba; x=2, 3 and 4. Physics and Chemistry of Glasses, 44(2), 150-154.

Pulsed neutron diffraction studies of RO.xB2O3 glasses : R=Ca, Sr and Ba; x=2, 3 and 4. / Suzuki, Y.; Ohtori, N.; Takase, K.; Handa, K.; Itoh, Keiji; Fukunaga, T.; Umesaki, N.

In: Physics and Chemistry of Glasses, Vol. 44, No. 2, 04.2003, p. 150-154.

Research output: Contribution to journalArticle

Suzuki, Y, Ohtori, N, Takase, K, Handa, K, Itoh, K, Fukunaga, T & Umesaki, N 2003, 'Pulsed neutron diffraction studies of RO.xB2O3 glasses: R=Ca, Sr and Ba; x=2, 3 and 4', Physics and Chemistry of Glasses, vol. 44, no. 2, pp. 150-154.
Suzuki Y, Ohtori N, Takase K, Handa K, Itoh K, Fukunaga T et al. Pulsed neutron diffraction studies of RO.xB2O3 glasses: R=Ca, Sr and Ba; x=2, 3 and 4. Physics and Chemistry of Glasses. 2003 Apr;44(2):150-154.
Suzuki, Y. ; Ohtori, N. ; Takase, K. ; Handa, K. ; Itoh, Keiji ; Fukunaga, T. ; Umesaki, N. / Pulsed neutron diffraction studies of RO.xB2O3 glasses : R=Ca, Sr and Ba; x=2, 3 and 4. In: Physics and Chemistry of Glasses. 2003 ; Vol. 44, No. 2. pp. 150-154.
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