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LiFe 5 O 8 and BaFe 12 O 19 Fine Particles Crystallised in a Glassy Matrix
Author(s) -
Rezlescu N.,
Rezlescu L.,
Craus M. L.,
Rezlescu E.
Publication year - 1999
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/(sici)1521-4079(199908)34:7<829::aid-crat829>3.0.co;2-g
Subject(s) - microstructure , materials science , annealing (glass) , diffraction , thermal , matrix (chemical analysis) , composite material , mineralogy , condensed matter physics , nuclear magnetic resonance , chemistry , optics , thermodynamics , physics
We investigated the magnetic and microstructure properties of the Fe 2 O 3 ‐ Li 2 O ‐ B 2 O 3 and Fe 2 O 3 ‐ BaO ‐ B 2 O 3 ‐ Sb 2 O 3 glass strips (with dimensions 50 mm long, 6 mm wide and about 30‐100 mikrometer thick) subjected to various heat treatments. The irreversible structure changes produced by heat treatments, were investigated by X‐ray diffraction and magnetic measurements. The magnetic behaviour is discussed in terms of the evolution of the size of LiFe 5 O 8 and BaFe 12 O 19 crystals dispersed in the glassy matrix, with thermal annealing.