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Transition metal ions in silicate melts. IV. Cobalt in sodium silicate and related glasses

Published online by Cambridge University Press:  03 March 2011

Carolynn Nelson  and
William B. White
Carolynn Nelson
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
William B. White
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
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Abstract

Optical measurements have been made on glasses quenched from a series of sodium silicate melts as well as germanate, borate, and phosphate liquids containing CoO. The spectral data show that Co+2 is the species stabilized in oxide melts heated in air. The observed bands occur at 2700–3850, 5750–7900, and 15 500–18 600 cm-1. The independence of the optical parameters from melt composition and known melt structures, the high relative intensity of the highfrequency band, and the low calculated value of the Racah B parameter relative to the free ion value indicate that Co+2 forms a distinct tetrahedral complex in the quenched melt.

Type
Articles
Information
Journal of Materials Research , Volume 1 , Issue 1 , February 1986 , pp. 130 - 138
Copyright
Copyright © Materials Research Society 1986

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References

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