Title :
The effect of rare-earth oxide CeO2 on the electromagnetic properties of ferrite-ceramic composite materials
Author :
Zhang, W.H. ; Zhong, H. ; Shi, Y.
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
In this work, we present the influence of rare-earth element additions on this new composite material. A great improvement of the electromagnetic properties was obtained. The constituent chemicals were mixed in the stoichiometric composition, calcined at 850degC for 2 h and blended with PVA to press into steroidal or disc shaped specimens. These specimens were sintered at 900degC for 2.5 h in air. The complex permeability, capacity and impedance were measured with HP4291B and 4291A instruments, respectively, in the frequency range from 1MHz to 2GHz.
Keywords :
calcination; ceramics; cerium compounds; composite materials; ferrites; magnetoelectric effects; sintering; 4291A instrument; Fe2O3:CeO2; HP4291B instrument; calcination; complex permeability; disc shaped specimen; electromagnetic properties; ferrite-ceramic composite materials; frequency 1 MHz to 2 GHz; rare-earth oxide element additions; sintering; steroidal shaped specimen; stoichiometric composition; temperature 850 C; temperature 900 C; time 2 h; time 2.5 h; Composite materials; Doping; Impedance; Inductors; Materials science and technology; Microelectronics; Permeability; Q factor; Solid state circuits; X-ray diffraction;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.376475
