...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Magnetics >Effect of Sn4+–Zn2+–Co2+Doping on Structural and Magnetic Properties of M-Type Barium Hexaferrites
【24h】

Effect of Sn4+–Zn2+–Co2+Doping on Structural and Magnetic Properties of M-Type Barium Hexaferrites

机译：Sn 4 + –Zn 2 + –Co 2 + 掺杂对M型钡铁氧体结构和磁性的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Barium hexaferrite and synthesized components by the combination of Co–Zn–Sn ions were prepared using sol–gel auto-combustion method. To complete the combustion process, a microwave oven was used, obtaining the finest powder. An X-ray diffractometer (XRD) revealed the formation of an M-type hexagonal structure with the P63/mmc system. Different lattice parameters including${a}= {b}$and${c}$and their changes were obtained via XRD peaks. According to Scherrer’s equation, enhancing dopant concentrations led to increases in${a}$and${c}$around 3.94–3.97 Å, which referred to the influence of substituents on crystallographic lattices, and the average crystal size was around 62 nm. Proving the synthesis process of hexaferrite, Fourier-transform infrared spectrum was observed to be around 400–600 and 1440 cm−1that revealed the stretching band of Fe–O. Magnetic properties and morphology were described using vibrating sample magnetometer and field-emission scanning electron microscopy (FESEM), respectively. FESEM micrographs represent the hexagonal structure of prepared samples with the average grain size in the nanometer range (120 nm). Finally, from hysteresis loops, it was understood that the highest amount of saturation magnetization (${M} _{mathbf {s}}$) belonged to the sample${x}= 0.5$(about 52.33 emu/g), which shows the pure phase but by increasing more substitutions, it decreased. The amount of${H} _{mathbf {c}}$reduction was related to the magnetic behavior of substituted dopants and nanoparticles size.
机译：使用溶胶-凝胶自动燃烧法制备了钡铁氧体和由Co-Zn-Sn离子组合而成的合成组分。为了完成燃烧过程，使用了微波炉，获得了最细的粉末。 X射线衍射仪（XRD）揭示了M型六边形结构的形成，其中P6 n 3 n / mmc系统。不同的晶格参数，包括 n $ {a} = { b} $ nand n $ {c} $ n，它们的变化是通过XRD峰获得的。根据Scherrer方程，提高掺杂剂浓度会导致 n <内联式xmlns：xlink = “ http：//www.w3.org/1999/xlink ”> $ {a} $ nand n < tex-math符号= “ LaTeX ”> $ {c} $ n大约3.94–3.97Å，这是指取代基对晶体晶格和平均晶体的影响尺寸约为62 nm。证明了六价铁氧体的合成过程，观察到傅立叶变换的红外光谱约为400–600和1440 cm n “ http：//www.w3.org/1999/xlink ”>- 1 n揭示了Fe–O的拉伸带。分别使用振动样品磁力计和场发射扫描电子显微镜（FESEM）描述了磁性能和形貌。 FESEM显微照片代表所制备样品的六边形结构，其平均晶粒尺寸在纳米范围内（120 nm）。最后，从磁滞回线可以理解，饱和磁化强度最高（ n $ {M} _ { mathbf {s}} $ n）属于示例 n $ {x} = 0.5 $ n（约52.33 emu / g），显示纯相，但通过增加更多取代基，它减少。 n <内联公式xmlns：xlink = “ http：//www.w3.org/1999/xlink ”> $ {H} _ { mathbf {c}} $ n还原与取代掺杂剂的磁性行为和纳米粒子尺寸有关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号