Mechanochemically synthesized Fe2B nanoparticles embedded in SiO2 nanospheres
作者： Sıddıka Mertdinç , Duygu Ağaoğulları , M. Lütfi Öveçoğlu
DOI: 10.1016/J.CERAMINT.2018.05.116
关键词:
摘要: Abstract This study reports on the preparation of diiron boride (Fe 2 B) powders via mechanochemical synthesis (MCS) followed by a purification step and embedment pure Fe B nanoparticles into silica (SiO ) nanospheres. O 3 , Mg used as starting materials were blended in stoichiometric amounts mechanochemically synthesized up to 7 h high-energy ball mill. As-synthesized purified from undesired Mg-based by-products HCl leaching. After that, with sizes smaller than 40 nm embedded SiO nanospheres using tetraethyl orthosilicate (TEOS) ammonia (NH containing solution. Characterization investigations as-synthesized, leached -embedded carried out X-ray diffractometer (XRD), scanning electron microscope/energy dispersive spectrometer (SEM/EDS), particle size analyzer (PSA), transmission microscope (TEM), Fourier transform infrared (FTIR) vibrating sample magnetometer (VSM). The average incorporated was measured about 330 nm. Magnetic measurements revealed that their samples had soft ferromagnetic behaviour coercivity 125 168 Oe, respectively.
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