Title :
Improved properties of lithium based ferrite ceramics sintered by microwave technique
Author :
Maisnam, Mamata ; Phanjoubam, Sumitra
Author_Institution :
Dept. of Phys., Manipur Univ., Canchipur, India
Abstract :
Two different types of substituted Li-ferrites have been sintered by microwave technique and the effects of this sintering on the various properties were investigated. Microwave sintering which is completed within very short period yielded samples with comparable structural parameters as those obtained with long hours of conventional sintering. Microwave sintered samples showed increase in the value of saturation magnetization, coercivity and RT d. c. resistivity. The dielectric constant and dielectric loss were found to be reduced. The temperature dependence of dielectric properties was less significant in the sample sintered by microwave sintering.
Keywords :
cadmium compounds; ceramics; coercive force; dielectric losses; ferrites; lithium compounds; magnetoresistance; manganese compounds; microwave materials processing; permittivity; sintering; titanium compounds; zinc compounds; Li0.3Zn0.2Cd0.2Fe2.3O4; Li0.6Mn0.1Ti0.1Fe2.2O4; RT d.c. resistivity; coercivity; conventional sintering; dielectric constant; dielectric loss; dielectric properties; lithium based ferrite ceramics; microwave sintering; saturation magnetization; structural parameters; substituted Li-ferrites; temperature dependence; Ceramics; Dielectrics; Electromagnetic heating; Ferrites; Microwave devices; Microwave oscillators; Lithium-based ferrites; XRD; coercivity; dielectric properties; microwave sintering; saturation magnetization;
Conference_Titel :
Applied Electromagnetics Conference (AEMC), 2013 IEEE
Conference_Location :
Bhubaneswar
Print_ISBN :
978-1-4799-3266-5
DOI :
10.1109/AEMC.2013.7045061
