Phase diagram of (Na0.5K0.5)NbO3-(Bi0.5Na0.5)ZrO3 solid solution

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.