Polycrystalline samples of BaMn_xZr_xFe_11.5−2×O_18.25 having different doping contents of Mn–Zr were fabricated and their magnetic properties investigated accordingly. The results show that the average crystalline size of this specimen is about 150 nm. As the doping content, x, of Mn–Zr increases from 0.1 to 1, the coercive force, Hc, continuously decreases from 368 kA/m to 120 kA/m, while the saturation magnetization, Ms, initially increases, and then subsequently decreased. The maximum Ms obtained in BaMn_xZr_xFe_11.5−2×O_18.25 with x = 0.3 is 63.03 Am²/kg. Moreover, residual magnetization, Mr, increases initially and then consistently decreased as the doping content, x, increases. The maximum Mr obtained when x is 0.2 is 30.85 Am²/kg. This study suggests that the magnetic properties of Barium ferrites can be adjusted to suit various application requirements by doping with different Mn and Zr contents at Fe sites.

制备了具有不同掺杂量的Mn-Zr的BaMn _x Zr _x Fe _{11.5−2 ×} O _18.25多晶样品，并据此研究了其磁性能。结果表明该样品的平均晶体尺寸为约150nm。随着Mn-Zr的掺杂含量x从0.1增加到1，矫顽力Hc从368 kA / m连续减小到120 kA / m，而饱和磁化强度Ms最初增加，然后减小。BaMn _x Zr _x Fe _{11.5−2 ×} O中获得的最大Ms_18.25与X  = 0.3是63.03上午² /公斤。此外，剩余磁化强度Mr最初增加，然后随着掺杂含量x的增加而持续减小。当x为0.2时获得的最大Mr为30.85 Am ² / kg。这项研究表明，可以通过在Fe位点掺杂不同的Mn和Zr含量来调节钡铁氧体的磁性，以适应各种应用要求。