Experimental Study of Ba7Fe4O13, Ba3Fe2O6, Ba2Fe2O5, BaFe2O4 Barium Ferrites

This paper presents the results of synthesis of BaO-Fe2O3 system compounds. The powder X-ray diffraction patterns are presented. The patterns of Ba3Fe2O6, Ba2Fe2O5 and BaFe2O4 coincide with literature data. The experimental cell parameters were calculated. The study results of nature and the melting temperatures of Ba3Fe2O6, Ba7Fe4O13, Ba2Fe2O5, BaFe2O4 are described. The compounds have congruent melting character. The melting temperatures of listed compounds are 1325, 1320, 1365, 1405 °C (1598, 1593, 1638, 1678 K), respectively.