Zr0.8Sn0.2TiO4微波介质陶瓷材料的掺杂改性

以Zr0 .8Sn0 .2 TiO4 作为主配方 ,以ZnO ,La2 O3,Fe2 O3和NiO作为改性剂 ,采用传统陶瓷制备工艺 ,对其进行了掺杂改性的初步探索。在优选的配方和工艺条件下 ,得到Zr0 .8Sn0 .2 TiO4 添加0 .5wt%ZnO(即质量分数为 0 .5 %的ZnO)的相对介电常数εr≈ 33.2 31,品质因数Q≈ 5 5 2 8(7GHz) ;添加 0 .5wt %ZnO ,0 .5wt?2 O3和 0 .2wt%NiO ,其εr≈ 33.73,Q≈ 5 2 5 4(7GHz) ;添加 1wt%ZnO和 0 .5wt %La2 O3,材料的εr≈ 37.996 ,Q≈ 4 72 3(7GHz)。

Effect of Doping in Zr0.8Sn0.2TiO4 Microwave Dielectric Ceramic

Dielectric ceramic of Zr_(0.8)Sn_(0.2)TiO_(4) containing ZnO, La_(2)O_(3), Fe_(2)O_(3) and NiO as sintering aids were prepared and investigated for microwave dielectric properties. By using conventional ceramic techniques, with the optimum composition and technique. With 0.5wt%ZnO additives, a ceramic having a dielectric constant, a quality factor at 7 GHz of 33.231 and (5 528), was obtained. With 0.5wt%ZnO,0.5wt%Fe_(2)O_(3) and 0.2wt%NiO additives, a ceramic having a dielectric constant, a quality factor at 7 GHz of 33.73 and 5 254, was obtained. With 1wt%ZnO and 0.5wt%La_(2)O_(3) additives, a ceramic having a dielectric constant, a quality factor at 7 GHz of 37.996 and 4 723, was obtained.