Synthesis and microwave dielectric properties of Ca substituted SrLa4Ti4.93Zr0.07O17 ceramics

Bulletin of materials science

Ibrahim Qazi¹  Abdul Manan² 

[1] Department of Materials Science and Engineering, Institute of Space Technology, Islamabad 44000, Pakistan$$Department of Materials Science and Engineering, Institute of Space Technology, Islamabad 44000, PakistanDepartment of Materials Science and Engineering, Institute of Space Technology, Islamabad 44000, Pakistan$$;Department of Physics, University of Science and Technology, Bannu, 28100 KPK, Pakistan$$Department of Materials Science and Engineering, Institute of Space Technology, Islamabad 44000, Pakistan$$Department of Physics, University of Science and Technology, Bannu, 28100 KPK, PakistanDepartment of Physics, University of Science and Technology, Bannu, 28100 KPK, Pakistan$$Department of Materials Science and Engineering, Institute of Space Technology, Islamabad 44000, Pakistan$$Department of Materials Science and Engineering, Institute of Space Technology, Islamabad 44000, PakistanDepartment of Physics, University of Science and Technology, Bannu, 28100 KPK, Pakistan$$Department of Materials Science and Engineering, Institute of Space Technology, Islamabad 44000, Pakistan$$

关键词: Patch antenna;    theoretical density;    phase;    ceramics.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Microwave dielectric ceramics in Sr_{1-ð‘�?}Ca_ð‘�?La₄Ti_4.93Zr_0.07O₁₇ (0 â‰�? ð‘�? â‰�? 0.5) composition series were processed via a solid-state sintering rout. X-ray diffraction revealed single phase ceramics. Ca substitutions for Sr tuned 𝜏_f towards zero with increased ð‘�??_uð‘�??_o values. In the present study, ðœ�?_r∼ 55, ð‘�??_uð‘�??_o ∼ 11960 GHz and 𝜏_ð‘�??∼ 5.2 ppm/°C were achieved for the composition with ð‘�? = 0.3.

【 授权许可】

Unknown