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1 Archives of Metallurgy and Materials

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Structure and Magnetic Properties of Bi5Ti3FeO15 Ceramics Prepared by Sintering, Mechanical Activation and Edamm Process. A Comparative Study

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Jartych E. , Pikula T. , Mazurek M. , Franus W. , Lisińska-Czekaj A. , Czekaj D. , Oleszak D. , Surowiec Z. , Aksenczuk A. , Calka A.

Structure and Magnetic Properties of Bi5Ti3FeO15 Ceramics Prepared by Sintering, Mechanical Activation and Edamm Process. A Comparative Study

100%

Jartych E. , Pikula T. , Mazurek M. , Franus W. , Lisinska-Czekaj A. , Czekaj D. , Oleszak D. , Surowiec Z. , Aksenczuk A. , Calka A.

Archives of Metallurgy and Materials

2016

tom Vol. 61, iss. 2A

869--874

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 producedBi5Ti3FeO15 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 theBi5Ti3FeO15 ceramics produced by various methods is in paramagnetic state.