CAJ | 학술논문

研究了Sb2O5和Bi2O3添加剂对Ag(Nb1-xTax)O3陶瓷材料的结构、形貌和介电性能的影响.结果表明:当Sb2O5和Bi2O3的质量分数较少(＜2.5%)时,不会影响Ag(Nb1-xTax)O3的钙钛矿结构,但能促进其烧结,使所得陶瓷样品更均匀致密.添加适量的Sb2O5和Bi2O3均可使Ag(Nb1-xTax)O3的介电常数(ε)增大,介电损耗(tgδ)减小,介电性能的温度稳定性得到改善.Bi2O3较Sb2O5对降低Ag(Nb1-xTax)O3陶瓷损耗及改善温度稳定性的效果更佳.
연구료Sb2O5화Bi2O3첨가제대Ag(Nb1-xTax)O3도자재료적결구、형모화개전성능적영향.결과표명:당Sb2O5화Bi2O3적질량분수교소(＜2.5%)시,불회영향Ag(Nb1-xTax)O3적개태광결구,단능촉진기소결,사소득도자양품경균균치밀.첨가괄량적Sb2O5화Bi2O3균가사Ag(Nb1-xTax)O3적개전상수(ε)증대,개전손모(tgδ)감소,개전성능적온도은정성득도개선.Bi2O3교Sb2O5대강저Ag(Nb1-xTax)O3도자손모급개선온도은정성적효과경가.
In order to synthesize Ag (Nb1-x Tax)O3 ceramics with good dielectric properties effectively, effects of Sb2 O5 and Bi2 O3 doping on the crystal phase, microstructure and dielectric properties of Ag(Nb1-x Tax )O3 ceramics were studied. The results show that small amounts of Sb2 O5 and Bi2 O3 doping (＜2.5%,in mass) can promote the sintering of Ag(Nb1-x Tax)O3 ,but will not change its perovskite structure. And the sintered ceramics show a more uniform particle distribution and higher density. The dielectric constant(ε)of Ag(Nb1-xTax)O3 increases with the increasing of Sb2 O5 and Bi2 O3 amount. The proper amount of Sb2O5 and Bi2O3 can decrease the dissipation factor (tgδ) of Ag(Nb1-xTax)O3 and improve the temperature dependence of permittivity of Ag(Nb1-x Tax)O3. The effect of Bi2 O3 on the improvement of the dissipation factor and temperature dependence of permittivity for Ag(Nb1-xTax)O3 ceramic is better than that of Sb2O5.