MICROSTRUCTURAL STUDY OF HEXAFERRITE RELATED-COMPOUNDS - Z(BA3CU2FE24O41) AND BAFE2O4 PHASE

被引:15
作者
NICOLOPOULOS, S
VALLETREGI, M
GONZALEZCALBET, JM
机构
[1] Departamento de Química Inorgánica I, Facultad de Químicas. Universidad Complutense
关键词
D O I
10.1016/0025-5408(90)90022-T
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A preliminar study of the solid state reactions at T>1300°C in order to form the Cu substituted Y-type hexagonal ferrite (Ba2Cu2Fe12O22), revealed the presence of crystals of Z(Ba3Cu2Fe24O41) and of barium monoferrite (BaFe2O4) between the final reaction products. A microstructural study by means of high resolution electron microscopy (HREM) of crystals of the Z phase, revealed the presence of disordered intergrowths of M and Y blocks preserving the Z phase stoichiometry. HREM observations in the case of the BaFe2O4 phase confirm the presence of twins, previously predicted from X-ray data. © 1990.
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页码:567 / 574
页数:8
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