CAJ | 학술논문

通过双掺杂氧化镝和氧化钨于氧化铋中，合成电解质并对其导电性进行测试。通过差热-热重来分析其热性能，确定其合成的烧结温度；并利用粉末 X 射线衍射对合成材料进行相分析，利用交流阻抗谱方法测试、计算试样的电导率。结果表明，烧结温度800℃时可得到具有高电导率相的立方相萤石结构的粉体，并无其它晶型出现。经计算，掺杂后的氧化铋电解质在700℃时电导率达18.7 S/ m，比目前使用最普遍的电解质材料 YSZ 电导率在500℃时高1~2个数量级。
통과쌍참잡양화적화양화오우양화필중，합성전해질병대기도전성진행측시。통과차열-열중래분석기열성능，학정기합성적소결온도；병이용분말 X 사선연사대합성재료진행상분석，이용교류조항보방법측시、계산시양적전도솔。결과표명，소결온도800℃시가득도구유고전도솔상적립방상형석결구적분체，병무기타정형출현。경계산，참잡후적양화필전해질재700℃시전도솔체18.7 S/ m，비목전사용최보편적전해질재료 YSZ 전도솔재500℃시고1~2개수량급。
Bi2 O3-Double doped Dy2 O3 and WO3 . The samples’thermal performances were analyzed by DTA-TG and sintering temperature confirmed the synthesis process. Phase distribution in synthesized sam-ples were analyzed by X-ray diffraction technique,and conductivities of the samples measured by using an AC impedance analyzer. The results show that the powder of cubic fluorite structure with pure single phase can be obtained at 800 ℃. At 700 ℃ ,after calculating the conductivity of doping Bi2 O3-based electrolyte is 18. 7 S / m,1 ~ 2 times as high as YSZ that the most commonly used electrolyte material at the moment, and at 500 ℃.