摘要
采用微波水热法制备了一系列的Ni0.5-XCuxZn0.50Fe2O4(x=0.05,0.10,0.15,0.20)铁氧体粉末,并用该纳米粉在910℃/4 h下,低温烧结形成了致密的陶瓷体。用XRD、SEM对烧结体的相结构和显微结构进行了研究,采用M155振动样品磁强计测试了烧结体的饱和磁化强度。研究表明,当Cu含量在0.05~0.20的范围内,Cu2+通过占据不同的离子空位,影响晶胞参数的大小;随着Cu含量的增加,烧结体的密度、晶粒尺寸、饱和磁化强度都有增长的趋势。
A series of Ni0.5-xCuxZn0.50Fe2O4 (x = 0. 05,0.10,O. 15,0. 20) terntes nanopowoers, were synthesized by microwave-hydrothermal method, and sintered into dense-ceramics under the conditions of 910℃/4h. Ni-Cu-Zn ferrites were measured by phase formation, microstructure and saturation magnetization with XRD, SEM and Vibrating Sample Magnetometer. Within a limited content range of x = 0.05 - 0.20, copper ions are present in different ionic states in the A- and B-sites which can influence the size of lattice parameter. The result shows that crystallite size, density and saturation magnetization of sinter samples were increased by increaseing of Cu content.
出处
《西南科技大学学报》
CAS
2007年第1期16-19,89,共5页
Journal of Southwest University of Science and Technology
基金
国防基础科研项目(A3120061156)
四川省应用基础研究项目(05JY029-071-2
05JY029-072)。