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Mössbauer studies of the effect of nucleating agents on the crystallization of YIG in the Na2O-SiO2-Y2O3-Fe3O3 glass system |
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| Authors: | A Prasad R M Singru D Bahadur D Chakravorty |
| Affiliation: | (1) Department of Physics, Indian Institute of Technology, 208016 Kanpur, India;(2) Advanced Centre for Materials Science, Indian Institute of Technology, 208016 Kanpur, India;(3) Central Glass and Ceramics Research Institute, 700032 Jadavpur, Calcutta, India |
| Abstract: | The effect of 2 mol % of P2O5 or TiO2 on the crystallization of yttrium-iron-garnet (YIG) in Na2O-SiO2-Y2O3-Fe2O3 glass ceramics has been investigated by X-ray and Mössbauer spectroscopic studies. These studies indicate that the glass ceramics containing P2O5 are more favourable for the crystallization of YIG. Analysis of the results suggest that an optimum growth temperature for crystallization of the YIG phase is 800° C in the sample with P2O5 as the nucleating agent. The sample heat-treated at the growth temperature for 40 h is not as favourable for crystallization of the YIG phase as the sample which is given a two-stage heat-treatment. |
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