摘要
采用SrTiO3溶胶对MnZn铁氧体进行表面改性,得到MnZn铁氧体/SrTiO3复合粉体,以PTFE为基体,制备了的MnZn铁氧体/SrTiO3/PTFE复合材料。采用HP4292B和HP4294对复合材料电磁性能进行了表征。结果表明:复合材料在低频阶段具有较高磁导率和介电常数以及较低磁损耗和介电损耗,复合材料的介电频率响应符合德拜弛豫理论。
MnZn ferrite powder was modifieated by SrTiO3 sol and then filled into PTFE matrix to form MnZn ferrite/SrTiO3/PTFE composite. The electromagnetic property of the composite was investigated using HP4292B and HP4294. The results revealed that the as - prepared eomposite possess high magnetic permeability and dieleetrie constant and very low loss at lower frequency. The dielectric dependence on frequency of the eomposite was accorded with Debye relaxation theory.
出处
《陶瓷》
CAS
2007年第4期22-24,共3页
Ceramics
基金
陕西科技大学创新基金(2005年基金项目)
