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Synthesis and characterization of nonconventional nickel-titania glasses by sol-gel route

Published online by Cambridge University Press:  31 January 2011

T. K. Kundu  and
D. Chakravorty
T. K. Kundu
Affiliation:
Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, India
D. Chakravorty
Affiliation:
Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, India
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Abstract

Glasses in the NiO–TiO2 system in the composition range 15 to 25 mol% of NiO have been synthesized by the sol-gel technique by heat treatment of the precursor sol at 500°C. The glass structure is built up by crosslinking of two units, namely TiO6 octahedron and NiO3 triangle. Glassy structure is confirmed at a microscopic level by scanning electron microscopy. An increase in the values of peak-to-peak width of electron paramagnetic resonance with increasing concentration of Ni2+ is attributed to an enhanced interaction between neighboring paramagnetic Ni2+ ions.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 3 , March 1999 , pp. 1069 - 1073
Copyright
Copyright © Materials Research Society 1999

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References

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