Cadmium substituted high permeability lithium ferrite

Bulletin of materials science

A M Shaikh¹  B K Chougule¹  S S Bellad¹  S C Watawe¹ 

[1] Department of Physics, Shivaji University, Kolhapur 416 004, India$$Department of Physics, Shivaji University, Kolhapur 416 004, IndiaDepartment of Physics, Shivaji University, Kolhapur 416 004, India$$

关键词: Lithium ferrites;    initial permeability;    grain size;    microstructure;    magnetic properties.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Polycrystalline Li_{0.5â€�?�ð�?��?/2} Cd_ð‘�? Fe_{2.5â€�?�ð�?��?/2}O₄ ferrites where ð‘�? = 0, 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6 were prepared by a double sintering ceramic technique and characterized by X-ray diffraction and scanning electron microscopy (SEM). The lattice parameter is found to increase monotonically with the cadmium content. It is explained in terms of the sizes of component ions. The grain size of the samples increases up to ð‘�? = 0.3 and then it decreases for higher values of ð‘�?. A similar trend is observed in the variation of Ms with Cd²⁺ content. The initial permeability (ðœ�?_ð‘�??) is however found to increase continuously with ð‘�?. The increase in ðœ�?_ð‘�?? is attributed to decrease of anisotropy constant K₁ and higher grain size of the samples.

【 授权许可】

Unknown