STUDY OF DENSIFICATION OF SOL-GEL DERIVED MULLITE DUE TO EXCESS IRON, NICKEL AND COPPER IONS
Mullite (3Al2O3·2SiO2) samples doped with 0.4 M, 0.6 M, 0.8 M, 1.0 M and 1.2 M of iron, nickel and Copper, were prepared by a sol-gel process. Prepared gels were then dried, grinded, pressed into pellets and sintered at temperatures 1100°C and 1400°C for 4 h. Phase formation, densification behavior...
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| Format: | Article |
| Language: | English |
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University of Chemistry and Technology, Prague
2013-09-01
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| Series: | Ceramics-Silikáty |
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| Online Access: | http://www.ceramics-silikaty.cz/2013/pdf/2013_03_219.pdf |
| _version_ | 1811226209545093120 |
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| author | Roy D. Haldar K Paul B. K. Bagchi B. Bhattacharya A. Das S. Nandy P. |
| author_facet | Roy D. Haldar K Paul B. K. Bagchi B. Bhattacharya A. Das S. Nandy P. |
| author_sort | Roy D. |
| collection | DOAJ |
| description | Mullite (3Al2O3·2SiO2) samples doped with 0.4 M, 0.6 M, 0.8 M, 1.0 M and 1.2 M of iron, nickel and Copper, were prepared by a sol-gel process. Prepared gels were then dried, grinded, pressed into pellets and sintered at temperatures 1100°C and 1400°C for 4 h. Phase formation, densification behavior has been investigated as a function of the metal content and sintering temperature. The density of the sintered ceramics was measured using Archimedes method. The main intention is to study the role of metal ions in influencing mullitization behavior in the case of the sol-gel reaction process, in order to provide useful information of mullite. This paper deals with the effect of metal ions on mullite formation, microstructure and densification behavior in single-phase sol-gel derived mullite. The results showed with increase in concentration of metals (Fe2+, Ni2+, Cu2+), crystallization of mullite was enhanced which is evident from X-ray diffraction upto G3 and FESEM of the composites. The density of the doped samples increases with the increase of metal ion concentration as well as with the sintering temperature. Copper-doped mullite exhibits the highest density 2.46 g cm-3 at 1400°C. |
| first_indexed | 2024-04-12T09:20:45Z |
| format | Article |
| id | doaj.art-be45b7a16fd54ac68257f77d5466647c |
| institution | Directory Open Access Journal |
| issn | 0862-5468 1804-5847 |
| language | English |
| last_indexed | 2024-04-12T09:20:45Z |
| publishDate | 2013-09-01 |
| publisher | University of Chemistry and Technology, Prague |
| record_format | Article |
| series | Ceramics-Silikáty |
| spelling | doaj.art-be45b7a16fd54ac68257f77d5466647c2022-12-22T03:38:39ZengUniversity of Chemistry and Technology, PragueCeramics-Silikáty0862-54681804-58472013-09-01573219224STUDY OF DENSIFICATION OF SOL-GEL DERIVED MULLITE DUE TO EXCESS IRON, NICKEL AND COPPER IONSRoy D.0Haldar K1Paul B. K.2Bagchi B.3Bhattacharya A.4Das S.5Nandy P.6Physics Department, Jadavpur University. Kolkata - 700 032. IndiaPhysics Department, Jadavpur University. Kolkata - 700 032. IndiaPhysics Department, Jadavpur University. Kolkata - 700 032. IndiaPhysics Department, Jadavpur University. Kolkata - 700 032. IndiaPhysics Department, Jadavpur University. Kolkata - 700 032. IndiaPhysics Department, Jadavpur University. Kolkata - 700 032. IndiaPhysics Department, Jadavpur University. Kolkata - 700 032. IndiaMullite (3Al2O3·2SiO2) samples doped with 0.4 M, 0.6 M, 0.8 M, 1.0 M and 1.2 M of iron, nickel and Copper, were prepared by a sol-gel process. Prepared gels were then dried, grinded, pressed into pellets and sintered at temperatures 1100°C and 1400°C for 4 h. Phase formation, densification behavior has been investigated as a function of the metal content and sintering temperature. The density of the sintered ceramics was measured using Archimedes method. The main intention is to study the role of metal ions in influencing mullitization behavior in the case of the sol-gel reaction process, in order to provide useful information of mullite. This paper deals with the effect of metal ions on mullite formation, microstructure and densification behavior in single-phase sol-gel derived mullite. The results showed with increase in concentration of metals (Fe2+, Ni2+, Cu2+), crystallization of mullite was enhanced which is evident from X-ray diffraction upto G3 and FESEM of the composites. The density of the doped samples increases with the increase of metal ion concentration as well as with the sintering temperature. Copper-doped mullite exhibits the highest density 2.46 g cm-3 at 1400°C.http://www.ceramics-silikaty.cz/2013/pdf/2013_03_219.pdfDensificationSol-gel processesNanocompositeScanning electron microscopy (SEM)X-ray diffraction (XRD) |
| spellingShingle | Roy D. Haldar K Paul B. K. Bagchi B. Bhattacharya A. Das S. Nandy P. STUDY OF DENSIFICATION OF SOL-GEL DERIVED MULLITE DUE TO EXCESS IRON, NICKEL AND COPPER IONS Ceramics-Silikáty Densification Sol-gel processes Nanocomposite Scanning electron microscopy (SEM) X-ray diffraction (XRD) |
| title | STUDY OF DENSIFICATION OF SOL-GEL DERIVED MULLITE DUE TO EXCESS IRON, NICKEL AND COPPER IONS |
| title_full | STUDY OF DENSIFICATION OF SOL-GEL DERIVED MULLITE DUE TO EXCESS IRON, NICKEL AND COPPER IONS |
| title_fullStr | STUDY OF DENSIFICATION OF SOL-GEL DERIVED MULLITE DUE TO EXCESS IRON, NICKEL AND COPPER IONS |
| title_full_unstemmed | STUDY OF DENSIFICATION OF SOL-GEL DERIVED MULLITE DUE TO EXCESS IRON, NICKEL AND COPPER IONS |
| title_short | STUDY OF DENSIFICATION OF SOL-GEL DERIVED MULLITE DUE TO EXCESS IRON, NICKEL AND COPPER IONS |
| title_sort | study of densification of sol gel derived mullite due to excess iron nickel and copper ions |
| topic | Densification Sol-gel processes Nanocomposite Scanning electron microscopy (SEM) X-ray diffraction (XRD) |
| url | http://www.ceramics-silikaty.cz/2013/pdf/2013_03_219.pdf |
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