CAJ | 학술논문

　　采用固相反应法制备Bi1.5 ZnNb1.5-x Tix O7（0≤x≤0.2， BZNT）陶瓷，研究了Ti 4＋替代Nb 5＋对Bi1.5 Zn-Nb1.5 O7陶瓷显微结构、介电性能和结晶化学特性的影响。结果表明：替代量x≤0.15 mol时，样品为单一的α-BZN相；陶瓷样品在960℃表现出最佳烧结特性，随着Ti 4＋替代量增加，晶格常数减小；结晶化学参数键价和AV （O′）[Bi4]、AV（O′）[Bi3 Zn]、AV（O′）[Bi2 Zn2]、AV（O′）[Ti3 Zn]均增大，且该行为与其晶格常数、介电性能变化相吻合。
　　채용고상반응법제비Bi1.5 ZnNb1.5-x Tix O7（0≤x≤0.2， BZNT）도자，연구료Ti 4＋체대Nb 5＋대Bi1.5 Zn-Nb1.5 O7도자현미결구、개전성능화결정화학특성적영향。결과표명：체대량x≤0.15 mol시，양품위단일적α-BZN상；도자양품재960℃표현출최가소결특성，수착Ti 4＋체대량증가，정격상수감소；결정화학삼수건개화AV （O′）[Bi4]、AV（O′）[Bi3 Zn]、AV（O′）[Bi2 Zn2]、AV（O′）[Ti3 Zn]균증대，차해행위여기정격상수、개전성능변화상문합。
Bi1.5 ZnNb1.5-x Tix O7 (0≤x≤0.2, BZNT)ceramics was prepared by a solid phase reaction .The effect of Ti 4+substitu-ting Nb 5+on the microstructure, dielectric and crystal chemistry properties of Bi 1.5 ZnNb1.5 O7 based ceramics was investigated.The re-sults revealed that when x≤0.15mol, crystal structure of Bi 1.5 ZnNb1.5-x Tix O7 ceramics via X-ray diffraction(XRD) was pure α-BZN phase.And all the compositions exhibited an optimal sintering property at 960o C .With the increase in the amount of Ti 4+ion , lattice constant gradually decreased .For crystal chemistry parameters, with the increase in the amount of Ti 4+ion, AV(O′)[Bi4 ], AV(O′)[Bi3 Zn], AV(O′)[Bi2 Zn2 ], AV(O′)[Ti3 Zn] all gradually increased, which coincided with the changes of lattice constant and dielectric properties.