Glass formation in the Sb2O3-SbPO4-WO3 system
Glasses in the ternary system (Sb2O3)(0.6-x)(SbPO4)(0.4)(WO3)(x), with composition 0.1 £ x £ 0.5 were studied. The structural changes due to the replacement of Sb2O3 by WO3 have been investigated. It was found that the incorporation of WO3 enhances the thermal stability of the glasses against devitr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual Paulista
2018-04-01
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| Series: | Eclética Química |
| Online Access: | https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/74 |
| _version_ | 1818358427375632384 |
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| author | Douglas Faza Franco Hassen Fares Antônio Eduardo de Souza Silvia Helena Santagneli Marcelo Nalin |
| author_facet | Douglas Faza Franco Hassen Fares Antônio Eduardo de Souza Silvia Helena Santagneli Marcelo Nalin |
| author_sort | Douglas Faza Franco |
| collection | DOAJ |
| description | Glasses in the ternary system (Sb2O3)(0.6-x)(SbPO4)(0.4)(WO3)(x), with composition 0.1 £ x £ 0.5 were studied. The structural changes due to the replacement of Sb2O3 by WO3 have been investigated. It was found that the incorporation of WO3 enhances the thermal stability of the glasses against devitrification when compared to the binary Sb2O3(0.6) - SbPO4(0.4) composition. The connectivity of the network increases with WO3 content which is consistent with the high values of the glass transition temperature. Raman studies suggest that WO3 incorporation breaks the primary network, constituted by antimony oxide, while a second network containing WO6 octahedral units is built up. Thermal and structural properties were evaluated by differential scanning calorimetry, infrared and Raman spectroscopies, 31P Magic Angle Spinning NMR and X-ray absorption near edge structure (XANES) at L1 and L3 edges of Sb and L1 edge of W atoms. |
| first_indexed | 2024-12-13T20:28:50Z |
| format | Article |
| id | doaj.art-a9ec17990f6d48a9b381db8cc379756c |
| institution | Directory Open Access Journal |
| issn | 1678-4618 |
| language | English |
| last_indexed | 2024-12-13T20:28:50Z |
| publishDate | 2018-04-01 |
| publisher | Universidade Estadual Paulista |
| record_format | Article |
| series | Eclética Química |
| spelling | doaj.art-a9ec17990f6d48a9b381db8cc379756c2022-12-21T23:32:29ZengUniversidade Estadual PaulistaEclética Química1678-46182018-04-01421515910.26850/1678-4618eqj.v42.1.2017.p51-5974Glass formation in the Sb2O3-SbPO4-WO3 systemDouglas Faza Franco0Hassen Fares1Antônio Eduardo de Souza2Silvia Helena Santagneli3Marcelo Nalin4Institute of Chemistry - São Paulo State University - UNESPInstitute of Chemistry - São Paulo State University - UNESPInstitute of Chemistry - São Paulo State University - UNESPInstitute of Chemistry - São Paulo State University - UNESPInstitute of Chemistry - São Paulo State University - UNESPGlasses in the ternary system (Sb2O3)(0.6-x)(SbPO4)(0.4)(WO3)(x), with composition 0.1 £ x £ 0.5 were studied. The structural changes due to the replacement of Sb2O3 by WO3 have been investigated. It was found that the incorporation of WO3 enhances the thermal stability of the glasses against devitrification when compared to the binary Sb2O3(0.6) - SbPO4(0.4) composition. The connectivity of the network increases with WO3 content which is consistent with the high values of the glass transition temperature. Raman studies suggest that WO3 incorporation breaks the primary network, constituted by antimony oxide, while a second network containing WO6 octahedral units is built up. Thermal and structural properties were evaluated by differential scanning calorimetry, infrared and Raman spectroscopies, 31P Magic Angle Spinning NMR and X-ray absorption near edge structure (XANES) at L1 and L3 edges of Sb and L1 edge of W atoms.https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/74 |
| spellingShingle | Douglas Faza Franco Hassen Fares Antônio Eduardo de Souza Silvia Helena Santagneli Marcelo Nalin Glass formation in the Sb2O3-SbPO4-WO3 system Eclética Química |
| title | Glass formation in the Sb2O3-SbPO4-WO3 system |
| title_full | Glass formation in the Sb2O3-SbPO4-WO3 system |
| title_fullStr | Glass formation in the Sb2O3-SbPO4-WO3 system |
| title_full_unstemmed | Glass formation in the Sb2O3-SbPO4-WO3 system |
| title_short | Glass formation in the Sb2O3-SbPO4-WO3 system |
| title_sort | glass formation in the sb2o3 sbpo4 wo3 system |
| url | https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/74 |
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