Phase diagram of (Na0.5K0.5)NbO3-(Bi0.5Na0.5)ZrO3 solid solution
Phase diagram of (Na0.5K0.5)NbO3-(Bi0.5Na0.5)ZrO3 solid solution
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DOI：
10.1142/s2010135x16500144
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发表时间：
2016-07
影响因子：
3.1
通讯作者：
Ruiping Wang;M. Itoh
中科院分区：
文献类型：
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作者：
Ruiping Wang;M. Itoh
通过介电常数测量和结构分析，建立了 (1−x)Na0.5K0.5NbO3–x(Bi0.5Na0.5)ZrO3 固溶体的相图。发现随着x的增加，C-T相变温度TC-T和T-O相变温度TT-O降低，而O-R相变温度TO-R升高。 NKN-xBNZ 的 TT−O 与 NKN-xBZ 固溶体的 TT−O 有很大不同。该结果主要可以通过A位离子与氧之间的杂化来阐明。
Phase diagram of (1−x)Na0.5K0.5NbO3–x(Bi0.5Na0.5)ZrO3 solid solution has been established from dielectric constant measurements and structure analyses. It is found that with increasing x, the C–T phase transition temperature TC−T and the T–O phase transition temperature TT−O decrease, while the O−R phase transition temperature TO−R increases. TT−O of NKN–xBNZ is much different from that of NKN–xBZ solid solution. The result could be mainly elucidated by the hybridization between the A-site ion and oxygen.