Structural and Physical Properties of Fe2O3-B2O3-V2O5 Glasses
The structural and physical properties of xFe2O3-(40-x) B2O3-60V2O5 (0≤x≤20) glass system have been investigated. The samples were prepared by normal melt-quench technique. The structural changes were inferred by means of FTIR by monitoring the infrared (IR) spectra in the spectral range 600–4000 c...
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| Format: | Article |
| Language: | English |
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Wiley
2008-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2008/937054 |
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| author | Virender Kundu R. L. Dhiman A. S. Maan D. R. Goyal |
| author_facet | Virender Kundu R. L. Dhiman A. S. Maan D. R. Goyal |
| author_sort | Virender Kundu |
| collection | DOAJ |
| description | The structural and physical properties of xFe2O3-(40-x) B2O3-60V2O5 (0≤x≤20) glass system have been investigated. The samples were prepared by normal melt-quench technique. The structural changes were inferred by means of FTIR by monitoring the infrared (IR) spectra in the spectral range 600–4000 cm-1. The absence of boroxol ring (806 cm-1) in the present glass system suggested that these glasses consist of randomly connected BO3 and BO4 units. The conversion of BO3 to BO4 and VO5 to VO4 tetrahedra along with the formation of non-bridging oxygen's (NBOs) attached to boron and vanadium takes place in the glasses under investigation. The density and molar volume of the present glass system were found to depend on Fe2O3 content. DC conductivity of the glass system has been determined in the temperature range 310–500 K. It was found that the general behavior of electrical conductivity was similar for all glass compositions and found to increase with increasing iron content. The parameters such as activation energy, average separation between transition metal ions (TMIs), polaron radius, and so forth have been calculated in adiabatic region and are found consistent with Mott's model of phonon-assisted polaronic hopping. |
| format | Article |
| id | doaj-art-5cea7e7e7b8a414ea386cf15f75e8a56 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-5cea7e7e7b8a414ea386cf15f75e8a562025-08-20T03:34:13ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242008-01-01200810.1155/2008/937054937054Structural and Physical Properties of Fe2O3-B2O3-V2O5 GlassesVirender Kundu0R. L. Dhiman1A. S. Maan2D. R. Goyal3Department of Electronic Science, Kurukshetra University, Kurukshetra 136 119, IndiaDepartment of Applied Physics, S.D. College Ambala Cantt, Kurukshetra University, Ambala Cantt 133 001, IndiaDepartment of Physics, Maharshi Dayanand University, Rohtak 124 001, IndiaDepartment of Physics, Maharshi Dayanand University, Rohtak 124 001, IndiaThe structural and physical properties of xFe2O3-(40-x) B2O3-60V2O5 (0≤x≤20) glass system have been investigated. The samples were prepared by normal melt-quench technique. The structural changes were inferred by means of FTIR by monitoring the infrared (IR) spectra in the spectral range 600–4000 cm-1. The absence of boroxol ring (806 cm-1) in the present glass system suggested that these glasses consist of randomly connected BO3 and BO4 units. The conversion of BO3 to BO4 and VO5 to VO4 tetrahedra along with the formation of non-bridging oxygen's (NBOs) attached to boron and vanadium takes place in the glasses under investigation. The density and molar volume of the present glass system were found to depend on Fe2O3 content. DC conductivity of the glass system has been determined in the temperature range 310–500 K. It was found that the general behavior of electrical conductivity was similar for all glass compositions and found to increase with increasing iron content. The parameters such as activation energy, average separation between transition metal ions (TMIs), polaron radius, and so forth have been calculated in adiabatic region and are found consistent with Mott's model of phonon-assisted polaronic hopping.http://dx.doi.org/10.1155/2008/937054 |
| spellingShingle | Virender Kundu R. L. Dhiman A. S. Maan D. R. Goyal Structural and Physical Properties of Fe2O3-B2O3-V2O5 Glasses Advances in Condensed Matter Physics |
| title | Structural and Physical Properties of Fe2O3-B2O3-V2O5 Glasses |
| title_full | Structural and Physical Properties of Fe2O3-B2O3-V2O5 Glasses |
| title_fullStr | Structural and Physical Properties of Fe2O3-B2O3-V2O5 Glasses |
| title_full_unstemmed | Structural and Physical Properties of Fe2O3-B2O3-V2O5 Glasses |
| title_short | Structural and Physical Properties of Fe2O3-B2O3-V2O5 Glasses |
| title_sort | structural and physical properties of fe2o3 b2o3 v2o5 glasses |
| url | http://dx.doi.org/10.1155/2008/937054 |
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