ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A novel ceramic synthesis technique, microwave-assisted process was investigated for theproduction of Barium Hexagonal ferrite (BaFe12O19) powders with improved physical properties.Compared to conventional syntheticroute, the new method significantly shortened synthetic steps andreaction time. This technique involves the reaction of stoichiometric amount of metal nitrates andappropriate dosage of citric acid at microwave oven and the whole process took only 15 min. The powdersof BaFe12O19 were further investigated by X-ray diffractometer (XRD) and scanning electron microscopy(SEM). The results showed that the formation temperature of M-type Ba hexaferrite is significant low,compared to conventional furnace heating. The X-ray diffraction analysis demonstrates that the phasepurity of the microwave-processed samples were determined and compared with a conventionallyprocessed material. SEM observations indicate that the size of the synthesized BaFe12O19 powders issmall and uniform distribution. Thus, microwave irradiation is proved to be a novel, extremely facile,timesaving and energy-efficient route to the synthesis of BaFe12O19 powders
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.576.pdf
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