Local structure around Ni2+ ions in sodium borate glasses

Q. Xu, T. Maekawa, K. Kawamura, T. Yokokawa

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


A study of the extended x-ray absorption fine structure of sodium borate glasses containing 1 mol% NiO gave a Ni-O bond length of 1.99-2.04 A depending upon the composition of the glass. It indicated that the coordination number of the Ni2+ ion begins to change at 15-20 mol% Na2O, with a marked decrease in the nearest Ni-O bond length. It appears that the suggestion that Ni2+ ions are present in fivefold as well as fourfold coordination gives a satisfactory explanation for the present data.

Original languageEnglish
Pages (from-to)151-155
Number of pages5
JournalPhysics and Chemistry of Glasses
Issue number4
Publication statusPublished - Aug 1 1990

ASJC Scopus subject areas

  • Ceramics and Composites
  • Physical and Theoretical Chemistry


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