Preparation of high-permeability NiCuZn ferrite.
Appropriate addition of CuO/V2O5 and the reduction of the granularity of the raw materials particle decrease the sintering temperature of NiZn ferrite from 1200 degrees C to 930 degrees C. Furthermore, the magnetic properties of the NiZn ferrite prepared at low temperature of 930 degrees C is superior to that of the NiZn ferrite prepared by sintering at high temperature of 1200 degrees C because the microstructure of the NiZn ferrite sintered at 930 degrees C is more uniform and compact than that of the NiZn ferrite sintered at 1200 degrees C. The high permeability of 1700 and relative loss coefficient tandelta/mu(i) of 9.0x10(-6) at 100 kHz was achieved in the (Ni0.17Zn0.63Cu0.20)Fe1.915O4 ferrite.
Hu
Jun
J
State Key Lab of Silicon Materials, Zhejiang University, Hangzhou 310027, China.
Yan
Mi
M
D003300:Copper / Q000032:analysis / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D017097:Electric Impedance; D005290:Ferric Compounds / Q000032:analysis / Q000737:chemistry*; D008280:Magnetics; D008422:Materials Testing; D008968:Molecular Conformation; D008970:Molecular Weight; D009532:Nickel / Q000032:analysis / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties; D013696:Temperature; D017967:Zinc Compounds / Q000032:analysis / Q000737:chemistry*
D005290:Ferric Compounds; D017967:Zinc Compounds; C062136:nickel copper alloy; C001215:ferrite; D003300:Copper; D009532:Nickel