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Journal of Mining and Metallurgy B: Metallurgy
2013, vol. 49, br. 1, str. 27-31
jezik rada: engleski
vrsta rada: neklasifikovan
objavljeno: 30/07/2013
doi: 10.2298/JMMB120430039M
Mechanochemical synthesis of bismuth ferrite
(naslov ne postoji na srpskom)
aUniverzitet u Beogradu, Centar za multidisciplinarne studije
bSrpska akademija nauke i umetnosti (SANU), Institut tehničkih nauka, Beograd

e-adresa: mzorica@imsi.bg.ac.rs

Sažetak

(ne postoji na srpskom)
A powder mixture of Bi2O3 and Fe2O3 was mechanically treated in a planetary ball mill in an air from 30 to 720 minutes. It was shown that the mechanochemical formation of BiFeO3 (BFO) phase was initiated after 60 min and its amount increased gradually with increasing milling time. A detailed XRPD structural analysis is realized by Rietveld's structure refinement method. The resulting lattice parameters, relative phase abundances, crystallite sizes and crystal lattice microstrains were determined as a function of milling time. Microstructural analysis showed a little difference in morphology of obtained powders. The primary particles, irregular in shape and smaller than 400 nm are observed clearly, although they have assembled together to form agglomerates with varying size and morphology. Dense BFO ceramics were prepared by conventional solid-state reaction at the temperature of 810oC for 1h followed immediately by quenching process.

Ključne reči

milling; structure; X-ray method; BiFeO3

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