BaCoxFe2−x W-type hexagonal ferrites with nominal composition $$ {\text{BaCo}}_{x} {\text{Fe}}_{2 - x}^{2 + } {\text{Fe}}_{16}^{3 + } {\text{O}}_{27} $$ (x = 0.0, 0.5, 1.0, 1.5) were prepared by conventional solid-state reaction in nitrogen at high annealing temperature of 1350 °C. X-ray diffraction and scanning electron microscopy were used to find out the structural and physical properties of BaCoxFe2−x W-type hexaferrites. Vibrating-sample magnetometry was used to measure hysteresis (M vs. H) loops. Furthermore, magneto-crystalline anisotropy constant (K), Bohr magneton (nB), initial permeability (μi), and magnetic anisotropy fields (Ha) of Co in BaCoxFe2−x W-type hexaferrites were also calculated. Finally, the magnetic characteristics of magnets were also analyzed by B–H measuring equipment.

中文翻译：

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通过固态反应制备的 Co 取代 BaFe2 W 型六铁氧体的结构、物理和磁性分析

BaCoxFe2−x W 型六方铁氧体，具有标称成分 $$ {\text{BaCo}}}_{x} {\text{Fe}}_{2 - x}^{2 + } {\text{Fe}}_ {16}^{3 + } {\text{O}}_{27} $$ (x = 0.0, 0.5, 1.0, 1.5) 是通过常规固相反应在氮气中在 1350 °C 的高退火温度下制备的. X 射线衍射和扫描电子显微镜被用来找出 BaCoxFe2-x W 型六铁氧体的结构和物理性质。振动样品磁力计用于测量磁滞（M vs. H）回线。此外，还计算了 BaCoxFe2-x W 型六铁氧体中 Co 的磁晶各向异性常数 (K)、玻尔磁子 (nB)、初始磁导率 (μi) 和磁各向异性场 (Ha)。最后，还通过B-H测量设备分析了磁铁的磁特性。