论文部分内容阅读
为了进一步研究化学取代抑止相转变的可能性,研究了Na_3Zr_(2-x)Y_xSi_(2-x)P_(1+x)O_(12)系统。结果表明:与Yb~(3+)取代Zr~(4+)的情况一样,在NASICON中,用Y~(3+)取代Zr~(4+)也能把NASICON的三方型稳定在室温。 用L.Pauling公式对固溶体的各组成进行了M—O键的离子性的计算,结果表明:固溶体电导率的增加和骨架共价性的增加无关。
In order to further investigate the possibility that chemical substitution suppresses phase transformation, the Na_3Zr_ (2-x) Y_xSi_ (2-x) P_ (1 + x) O_ (12) system was studied. The results show that the NASICON triads can be stabilized at room temperature by substituting Y ~ (3+) for Zr ~ (4+) in NASICON. The ionic conductivity of M-O bond was calculated by L. Pauling formula. The results show that the increase of solid solution conductivity has nothing to do with the increase of the skeleton covalence.