电子元件与材料2018，Vol.37Issue(6)：1-5,5.DOI:10.14106/j.cnki.1001-2028.2018.06.001
Sm掺杂对0.97La2(1-x)/3 Sm2x/3 TiO3-0.03NiTiO3微波介质陶瓷性能的影响
Effect of Sm doping on properties of 0.97La2(1-x)/3 Sm2x/3 TiO3 -0.03NiTiO3 microwave dielectric ceramics
摘要
Abstract
The microwave dielectric properties and crystal structure of the 0.97La2(1-x )/3 Sm2 x/3 TiO3-0.03NiTiO3 ceramics were investigated as a function of the amount of samarium ions substitutions (0. 05≤x≤0. 2) . The experimental results show that the do-ping of samarium ions reduces the frequency temperature coefficientτf effectively with the increasing of samarium ions doping content, which is decreased from 115×10-6℃-1 to 15×10-6℃-1. The addition of samarium ions also decreases the sintering temperature from 1390 ℃ to 1300℃. Nevertheless, with the increasing of samarium ions doping content, the second phase is formatted and it leads to the decrease of ceramic's density and the relative permittivity. When the samarium ions substitution amount (x) is 0. 1, the sintering temperature is 1360 ℃. The optimum microwave dielectric properties are obtained withεr of 55. 2, Q·f of 9399 GHz, andτf of 89 ×10-6℃-1 .关键词
微波介质陶瓷/掺杂/固相反应法/物相组成/介电性能/高温烧结Key words
microwave dielectric ceramics/doping/solid state reaction/phase composition/dielectric properties/high tem-perature sintering分类
信息技术与安全科学引用本文复制引用
赵昱,钟朝位,谢林杉..Sm掺杂对0.97La2(1-x)/3 Sm2x/3 TiO3-0.03NiTiO3微波介质陶瓷性能的影响[J].电子元件与材料,2018,37(6):1-5,5.基金项目
总装十二五预研项目资助(51312050401) （51312050401）
