Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1634977 | Rare Metals | 2008 | 5 Pages |
Abstract
Ni0.4Zn0.6Fe2âxNdxO4(x = 0-0.07) ferrites doped with different amounts of Nd2O3 were prepared using standard ceramic technique. The samples were uniaxially pressed and sintered at 1250°C for 4 h in air. The phase structure and microstructure of the samples were investigated using X-ray diffraction and scanning electron microscope, respectively. The complex permeability was measured using the impedance analyzer in the range of 1-100 MHz. The results indicate that with increasing Nd3+ content, the relative density and lattice parameter a of the sintered samples increase, whereas the real part of permeability (μâ²) and the magnetic loss tangent (tan δ) decrease. The substitution of Nd3+ for Fe3+ forms a secondary phase on the grain boundary of the matrix, which strongly restrains the grain growth of the matrix.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Xiufeng FAN, Huiping REN, Yanghuan ZHANG, Shihai GUO, Xinlin WANG,