Citation: Fang Liang, Zhang Hui, Wu Bo-Lin, Yuan Run-Zhang. Structural and Dielectric Properties of a Niobate Ba3NaBiNb10O30[J]. Acta Physico-Chimica Sinica, ;2001, 17(05): 457-459. doi: 10.3866/PKU.WHXB20010516
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A niobate was synthesized by doping Bi3+ in the ternary system BaONa2ONb2O5. The crystal structure was determined by Xray powder diffraction,and it belongs to tetra nal tungsten bronze structure at room temperature with unit cell parameters a=1.24777 (2) nm,c=0.39266(1) nm, = = =90 .Measurements of dielectric properties indicate that phase transitions of Ba3NaBiNb10O30 from paraelectric to ferroelectric occurs at 400℃,which is lower than that of Ba2NaNb5O30.
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