A novel self-composite property-tunable LaTiNbO6 microwave dielectric ceramic

作者：Zhang, Jian; Zuo, Ruzhong^*

来源：Materials Research Bulletin, 2016, 83: 568-572.

DOI：10.1016/j.materresbull.2016.07.004

• Ceramics
• Microstructure
• Phase transitions
• X-ray diffraction
• Dielectric properties

A novel self-composite LaTiNbO6 microwave dielectric ceramic was fabricated via a solid-state reaction method together with an annealing process. A monoclinic LaTiNbO6 after a conventional sintering was found to gradually transform into an orthorhombic counterpart with prolonging annealing time. Microwave dielectric properties of ceramics can be easily tailored by changing the relative content of two coexisting phases with complementary performances. A thermal-stable dielectric ceramic (epsilon(r) = 30.2, Q x f = GHz) was yielded after annealing at 1100 degrees C for 1 h. The concept of the self composite might provide an innovative and simple way to develop property-tunable microwave dielectric ceramics.

• 出版日期2016-11
• 单位合肥工业大学