Fly Ash Constituent-Silica and Alumina Role in the Synthesis and Characterization of Cordierite Based Ceramics
| العنوان: | Fly Ash Constituent-Silica and Alumina Role in the Synthesis and Characterization of Cordierite Based Ceramics |
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| المؤلفون: | Ramalinga Viswanathan Mangalaraja, M. Vanmathi, M. Senthil Kumar, G. Senguttuvan, Gnanasekaran Sakthivel |
| المصدر: | Silicon. 11:2599-2611 |
| بيانات النشر: | Springer Science and Business Media LLC, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | 010302 applied physics, Materials science, Environmental pollution, Cordierite, 02 engineering and technology, engineering.material, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, Electronic, Optical and Magnetic Materials, Flexural strength, visual_art, Fly ash, Differential thermal analysis, 0103 physical sciences, Vickers hardness test, visual_art.visual_art_medium, engineering, Ceramic, Composite material, 0210 nano-technology |
| الوصف: | Abundant availability of fly ash due to the combustion of coal in thermal power plants presents a major threat to rising environmental pollution. To preserve the environment, fly ash was explored as the starting material for cordierite synthesis. Cordierite ceramics are widely used in the production of microelectronic components, catalyst substrate material for internal combustion engine. Hence, this research was pursued to fabricate the cordierite in a cost effective manner using fly ash containing the major constituent’s silica (SiO2) and alumina (Al2O3). Cordierite synthesis is carried out using raw materials fly ash, magnesia and dopants such as ZrO2, CeO2 and TiO2 at different composition (5–20 wt%). The properties and the microstructure of prepared samples were evaluated using X-ray diffraction (XRD), thermogravimetric and differential thermal analysis (TG/DTA), and scanning electron microscopy. Their mechanical and thermal properties such as the hardness, the fracture toughness, the flexural strength and the thermal expansion coefficient (CTE) were studied and compared with their morphology. It was found that the hardness, the fracture toughness, and the flexural strength were improved on the addition of the dopant in the cordierite matrix. The cordierite-ZrO2 ceramics (CZr20) exhibited a Vickers hardness value of 7.04 GPa, the fracture toughness of 3.47 MPa m½, and flexural strength of 196.72 MPa. The results confirm the cordierite synthesized with fly ash along with dopants is found suitable for use as catalytic substrate materials with improved mechanical properties. |
| تدمد: | 1876-9918 1876-990X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::95188dfaaf95a4460ed6f1b00de75147 https://doi.org/10.1007/s12633-018-0049-0 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........95188dfaaf95a4460ed6f1b00de75147 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 18769918 1876990X |
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