Impact of Nd-Zn co-substitution on microstructure and magnetic properties of SrFe12O19 nanohexaferrite

被引：76
作者：
Almessiere, M. A. [1 ,3 ]
Slimani, Y. [2 ]
Baykal, A. [3 ]
机构：
[1] Imam Abdulrahman Bin Faisal Univ, Dept Phys, Coll Sci, POB 1982, Dammam 31441, Saudi Arabia
[2] Imam Abdulrahman Bin Faisal Univ, IRMC, Dept Biophys, POB 1982, Dammam 31441, Saudi Arabia
[3] Imam Abdulrahman Bin Faisal Univ, IRMC, Dept Nanomed Res, POB 1982, Dammam 31441, Saudi Arabia
来源：
CERAMICS INTERNATIONAL | 2019年 / 45卷 / 01期
关键词：
SrFe12O19; Magnetic properties; Sol-gel synthesis; Rare earth substitution; AC SUSCEPTIBILITY; DIELECTRIC-PROPERTIES; FERRITES; BEHAVIOR; STRAIN; CR3+;
D O I：
10.1016/j.ceramint.2018.09.272
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This study investigated Sr(Nd,Zn)(x)Fe12-xO19 (0.0 <= x <= 0.1) nanohexaferrites synthesized using the sol-gel auto combustion route. The phase of the Sr(Nd,Zn)(x)Fe12-xO19 (0.0 <= x <= 0.1) nanohexaferrites was confirmed using an X-ray powder diffractometer. Moreover, field emission scanning electron microscopy revealed agglomerated grains with a hexagonal-plate structure. The magnetic hysteresis loops indicated that the various synthesized nanohexaferrites exhibited hard ferromagnetic behaviors at both room and low temperatures. The values deduced for the saturation magnetization (M-s), remanence (M-r), magneton number, and magneto-crystalline anisotropy constant were improved through the use of low Nd and Zn contents, i.e., Sr(Nd,Zn)(0.1)Fe11.9O19. These parameters had lower values with higher Nd and Zn contents. On the other hand, the coercivity and intrinsic coercivity were improved by the Nd and Zn substitutions. The squareness ratio (M-r/M-s) was approximately 0.50, suggesting that the Sr(Nd,zn)(x)Fe12.xO19 (0.0 <= x <= 0.1) nanohexaferrites had uniaxial anisotropy.
引用
收藏
页码：963 / 969
页数：7
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