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Effect of Zn2+ concentration on the microstructure and magnetic properties of n anocrystalline Co1xZnxFe2O4 ferrites powder

LIU YIN1,* , ZHANG LEI1, GAN ZHI-PING2, MA LI-YUN2, MIN FAN-FEI1, ZHANG MING-XU1

Affiliation

  1. School of Materials Science and Engineering, Anhui Uni versity of Science and Technology, Huainan 232001, Anhui, China
  2. China Triumph International Engineering Group Co Ltd Bengbu 233018 Anhui, China

Abstract

Nano crystalline Co1xZn x Fe 2 O 4 ferrites powder were prepared by the spraying coprecipitation method. Their microstructure and magnetic properties wer e investigated by XRD, TEM as well as VSM. T he results show that nano crystalline Co1xZnxFe2O4 ferrite s powder are spinel phase. The average crystallite size of nanocrystalline Co1xZnxFe2O4 ferrites powder calci ned at 7 00 C for 1.5 h is about 3 2 nm. The lattice parameter a of nanocrystalline Co1xZnxFe2 O4 ferrites powder increase s with the Zn2+ ions concent ration. The enhancement of the magnetization up to maximum value of 83.4 A·m 2 ·kg 1 in nanocrystalline Co0.7Zn0.3Fe2O4 ferrite powder is observed. This can be attributed to the change of the net magnetic moment between the sublattices for the substitution of the Co2+ ions with Zn2+ ions. The coercivity Hc of nanocrystalline Co1xZnxFe2O4 ferrites powder decrease s with Zn2+ ions concentration..

Keywords

Nano crystalline materials Co1xZnxFe2O4 ferrite Microstructure Magnetic properties.

Citation

LIU YIN, ZHANG LEI, GAN ZHI-PING, MA LI-YUN, MIN FAN-FEI, ZHANG MING-XU, Effect of Zn2+ concentration on the microstructure and magnetic properties of n anocrystalline Co1xZnxFe2O4 ferrites powder, Optoelectronics and Advanced Materials - Rapid Communications, 6, 7-8, July-August 2012, pp.738-741 (2012).

Submitted at: April 13, 2012

Accepted at: July 19, 2012