Structure and magnetic properties of Bi5Ti3FeO15 ceramics prepared by sintering, mechanical activation and EDAMM process. A comparative study
| Autor: | Dariusz Oleszak, Elżbieta Jartych, Wojciech Franus, Agata Lisińska-Czekaj, Andrzej Calka, Dionizy Czekaj, A Aksenczuk, T. Pikula, Zbigniew Surowiec, M. Mazurek |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
lcsh:TN1-997
Diffraction Materials science Sintering 02 engineering and technology Thermal treatment 01 natural sciences Paramagnetism Mechanical activation 0103 physical sciences Mössbauer spectroscopy Magnetic properties lcsh:TA401-492 Aurivillius compound Ceramic Composite material lcsh:Mining engineering. Metallurgy 010302 applied physics Metals and Alloys 021001 nanoscience & nanotechnology visual_art Scientific method visual_art.visual_art_medium lcsh:Materials of engineering and construction. Mechanics of materials Electric discharge 0210 nano-technology Bismuth compounds |
| Zdroj: | Archives of Metallurgy and Materials, Vol 61, Iss 2, Pp 869-874 (2016) |
| Popis: | Three different methods were used to obtain Bi5Ti3FeO15 ceramics, i.e. solid-state sintering, mechanical activation (MA) with subsequent thermal treatment, and electrical discharge assisted mechanical milling (EDAMM). The structure and magnetic properties of produced Bi5Ti3FeO15 samples were characterized using X-ray diffraction and Mössbauer spectroscopy. The purest Bi5Ti3FeO15 ceramics was obtained by standard solid-state sintering method. Mechanical milling methods are attractive because the Bi5Ti3FeO15 compound may be formed at lower temperature or without subsequent thermal treatment. In the case of EDAMM process also the time of processing is significantly shorter in comparison with solid-state sintering method. As revealed by Mössbauer spectroscopy, at room temperature the Bi5Ti3FeO15 ceramics produced by various methods is in paramagnetic state. |
| Databáze: | OpenAIRE |
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