A Novel Magneto-Dielectric Solid Solution Ceramic 0.25LiFe(5)O(8)-0.75Li(2)ZnTi(3)O(8) with Relatively High Permeability and Ultra-Low Dielectric Loss

作者：He Li; Zhou Di; Yang Haibo; Guo Jing; Wang Hong^*

来源：Journal of the American Ceramic Society, 2012, 95(12): 3732-3734.

DOI：10.1111/jace.12075

In this study, a 0.25LiFe5O80.75Li2ZnTi3O8 solid solution ceramic was developed via the solid-state reaction method. Its phase evolution, microstructure, and sintering behavior were investigated and it was found that the 25 mol.% LiFe5O8 phase is almost fully soluble in Li2ZnTi3O8, and only the Li2ZnTi3O8 type spinel phase was formed in the 0.25LiFe5O80.75Li2ZnTi3O8 ceramic. The ceramic sample sintered at 1050 degrees C for 2 h was found to possess both good magnetic properties and dielectric properties in the frequency range from 1 to 10 MHz, with permeability between 38.2 and 15 and magnetic loss tangent between 0.25 and 0.75, permittivity between 19.6 and 19.3 and dielectric loss tangent between 8 x 10-3 and 2 x 10-3. The sample also possesses good microwave dielectric properties with a relative permittivity of 19.1, a high quality factor (Qf) similar to 11,770 GHz (at 6.84 GHz). The ceramic is a novel magneto-dielectric ceramic with both high permeability and good dielectric properties, which might be a good candidate for the applications in novel electronic devices.

• 出版日期2012-12
• 单位西安交通大学