학술논문
EPR Study of MnO and MnO Doped Barium Aluminoborate Glasses.
Document Type
Article
Author
Source
Subject
*OXIDATION-reduction reaction
*MANGANESE
*CHEMICAL processes
*TRANSITION metal compounds
*PHOSPHORS
*BARIUM
*TRANSITION metal oxides
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Language
ISSN
1557-1939
Abstract
An off-equilibrium redox condition study of Mn and Mn ions added to the batch is reported for the case of the preparation of the barium aluminoborate glasses, by considering that the out of equilibrium reactions started already on the melt. It is shown that for lower dopant concentrations the relative concentrations of the oxidation states of the manganese are found out of equilibrium up to the added amount of 0.3 mol% of MnO, but on doping with MnO, the equilibrium state is achieved at the MnO added amount of 0.07 mol%. The change of the redox condition of the manganese ions toward the equilibrium was studied by tracking the Mn amount as a function of the doping concentration in the two cases of MnO and MnO. [ABSTRACT FROM AUTHOR]