电子元件与材料2017，Vol.36Issue(3)：21-25,5.DOI:10.14106/j.cnki.1001-2028.2017.03.005
钛酸钙、钛镁酸镧及钛锌酸镧系微波介质陶瓷材料研究
Investigation of CaTiO3 microwave ceramic materials dopped by La(Mg1/2Ti1/2)O3 and La(Zn1/2Ti1/2)O3
摘要
Abstract
La(Mg1/2Ti1/2)O3(LMT) doped CaTiO3(CT) ceramic materials prepared by using the traditional process possess lower relative permittivity εr and quality factor Qf in the manufacturing process of microwave dielectric ceramic filter.New CaTiO3 composite ceramic materials modified by La(Mg1/2Ti1/2)O3 and La(Zn1/2Ti1/2)O3(LZT) were obtained. These materials not only replace the lead based microwave ceramic materials,but also possess excellent relative permittivity εr and quality factor Qf. The results reveal that when the x and y values are located at the range of 0.20≤x≤0.60,0.40≤y≤0.70, respectively,the(1–y)CaTiO3+yLa(Zn(1–x)/2Mgx/2Ti1/2)O3 microwave dielectric ceramic materials possess good relative permittivity(εr≥55), quality factor (Qf≥40000) and temperature coefficient of frequency (τf≤±100×10–6℃–1).关键词
钛酸钙系/微波介质材料/相对介电常数/高品质因数/低频率温度系数/介电常数温度系数Key words
calcium titanate system/microwave dielectric materials/relative permittivity/high quality factor/low temperature coefficient of frequency/temperature coefficient of permittivity分类
信息技术与安全科学引用本文复制引用
李文兴,王蓉江..钛酸钙、钛镁酸镧及钛锌酸镧系微波介质陶瓷材料研究[J].电子元件与材料,2017,36(3):21-25,5.基金项目
"陕西省企业技术创新专项资金"项目资助(No. 陕工信发[2014]105号) （No. 陕工信发[2014]105号）
