Journal
MATERIALS LETTERS
Volume 50, Issue 5-6, Pages 308-317Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-577X(01)00245-2
Keywords
ionic conductivity; electronic conductivity; EPR spectroscopy; impedance spectroscopy; phosphate glasses
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A range of coloured electronic or mixed ionic-electronic glasses has been evidenced in the Na2O-MoO3-P2O5 system. The properties of these glasses have been studied along different composition lines corresponding either to a fixed Na2O content or a constant Mo/P ratio. An EPR spectroscopy investigation of these glasses has allowed to determine the Mo5+ ion percentages in these materials. The electrical proper-ties of these glasses have been studied by impedance spectroscopy, and the electronic and ionic contributions have been evaluated. The properties of these sodium glasses have been compared with those of lithium glasses with the same compositions. (C) 2001 Elsevier Science B.V. All rights reserved.
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