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系统地研究了Ｎａ２．５Ｈｆ２－ｘＴｉｘＳｉ１．５Ｐ１．５Ｏ１２快离子导体的阻抗谱，采用ＺＲＥＳ３．３程序对实测点进行解释和拟合计算，结果表明该系统呈良好的低温导电性。其中起始组成为Ｎａ２．５Ｈｆ１．８Ｔｉ０．２Ｓｉ１．５Ｏ１２的电导性最好．在４７３Ｋ时，其导电率σ４７３＝１．４７×１０－２（Ω·ｃｍ）－１，电导激活能Ｅａ＝ ２３．８６ｋＪ／ｍｏｌ．
The impedance spectroscopy of Na2.5Hf2-xTixSi1.5P1.5O12 fast ionic conductor was systematically studied. The ZRES3.3 program was used to explain and fit the measured points. The results show that the system has a good low-temperature conductivity. The initial composition of Na2.5Hf1.8Ti0.2Si1.5O12 conductivity of the best. At 473K, its conductivity σ473 = 1.47 × 10-2 (Ω · cm) -1, and its activation energy Ea = 23.86kJ / mol.