NiCuZn ferrite flakes prepared using a sol-gel bubble method and its magnetic properties

作者：Yang Z H^*; Li Z W; Liu L; Kong L B

来源：Journal of Alloys and Compounds, 2011, 509(6): 3038-3041.

DOI：10.1016/j.jallcom.2010.11.195

• NiCuZn ferrites
• Flakes
• Sol-gel process
• Magnetic properties

Ni(0.23)Cu(0.11)Zn(0.66)Fe(2)O(4) ferrite flakes, with thickness of about 8 mu m and average diameter of 20-35 mu m, were prepared using a sol-gel bubble method. Morphology, phase evolution, static and dynamic magnetic properties of the flakes and their composites were studied. Magnetic measurements showed that easy magnetization direction of the flaky filler composite was parallel to its sample plane. Composites made of silicone resins and flakes had higher complex permeability, which can be attributed to the reduction in demagnetization factor due to their flaky shapes. This sol-gel bubble method should be also applicable to fabricating flakes of other multi-component oxides.

• 出版日期2011-2-10