【摘要】 纳米Mn-Zn软磁铁氧体以硝酸铁、硝酸锌、硝酸锰和柠檬酸为原料,利用溶胶-凝胶凝胶自蔓延燃烧工艺合成纳米级Mn-Zn铁氧体粉体。用X-衍射(XRD)分析了粉体的粒径大小和强度是否符合标准,利用高压投射电子显微镜、振动样品磁强计(VSM)、研究了烧结MnZn铁氧体的成相状态、磁性能。通过分析得到最佳制备条件:Mn:Zn=0.55:0.45、pH值为5、煅烧温度为200℃、煅烧时间为90 min。更多还原

【Abstract】 Soft magnetic MnZn ferrite nanoparticles were prepared by a novel citrate auto-combustion method using Mn(NO3)2,Fe(NO3 3.9H2O,and Zn(NO3)2.6H2O dissolved in water and citric acid.The powder was charactered by X-ray diffraction(XRD).Using high pressure projection electron microscopy,vibrating sample magnetometer(VSM),a study into the sintered ferrite MnZn of state,the magnetic properties.By analyzing the best of conditions: Mn: Zn = 0.55:0.45,PH value of 5,calcination temperature of 200 ℃,calcination time for 90 min.更多还原