MICROSTRUCTURE AND PHYSICOCHEMICAL STUDIES OF PURE AND ZINC-SUBSTITUTED LITHIUM FERRITES SINTERED ABOVE 1000-DEGREES-C

被引:17
作者
BERMEJO, E
LEMERCIER, T
QUARTON, M
机构
[1] Laboratoire de Cristallochimie du Solide, Université Pierre et Marie Curie, CNRS-URA 1388, Paris
关键词
D O I
10.1111/j.1151-2916.1995.tb08809.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The effects of sintering temperature above 1000 degrees C and of cooling rate on the microstructual development of pure and Zn-substituted spinel Lithium ferrites are discussed. The strong dependence of microstructural features on cooling rate can be explained on the basis of the precipitation of alpha-Fe2O3 or the formation of a solid solution of ferrite phase with Fe3O4 occurring during sintering above 1000 degrees C. These two phenomena are studied by detailed characterization analyses: SEM, XRD, magnetization, and ac electrical resistivity measurements.
引用
收藏
页码:365 / 368
页数:4
相关论文
共 16 条
[1]  
AMEMIYA M, 1970, 1970 P INT C FERR
[2]   MICROWAVE LITHIUM FERRITES - OVERVIEW [J].
ARGENTINA, GM ;
BABA, PD .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1974, MT22 (06) :652-658
[3]  
BABA PD, 1972, IEEE T MAGN, V1, P83
[4]   THERMOGRAVIMETRY OF LITHIUM SPINEL FERRITES [J].
BANDYOPADHYAY, G ;
FULRATH, RM .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1974, 57 (11) :483-486
[5]   STUDY OF SOLID ELECTROLYTE POLARIZATION BY A COMPLEX ADMITTANCE METHOD [J].
BAUERLE, JE .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1969, 30 (12) :2657-&
[6]  
BUCHANAN RC, 1991, CERAMIC MATERIALS EL, P61
[7]  
DRAGOO AL, 1988, ICDD JCPDS611
[8]  
KVAPIL J, 1969, GROWTH CRYSTALS, V7, P233
[9]  
MANJULA R, 1990, FERRITE MAT SCI TECH, P25
[10]  
MISHRA RK, 1978, J AM CERAM SOC, V61, P121, DOI 10.1111/j.1151-2916.1978.tb09253.x