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研究了不同掺杂方式对ＰＴＣＲ材料电学性能的影响。结果表明：Ｙｂ一次掺杂ＢａＴｉＯ３电阻变化为“Ｕ”型曲线，低阻区为０．１ｍｏｌ％～０．３ｍｏｌ％；其移峰效率为３～５℃／ｍｏｌ。二次单一掺杂Ｙｂ提高电阻率，降低升阻比；二次单一掺杂Ｍｎ提高电阻率与升阻比；二次Ｙｂ．Ｍｎ共掺杂可降低电阻率，提高升阻比，并探讨了二者配合作用的机理。Ｙｂ∶Ｍｎ＝１∶１效果最佳。
The effects of different doping methods on the electrical properties of PTCR materials were investigated. The results show that the Yb primary BaTiO3 resistance changes to a “U” curve with a low resistance of 0.1 mol% to 0.3 mol% and a peak shifting efficiency of 3 ~ 5 ℃ / mol. The second single doping Yb increases the resistivity and decreases the resistance ratio. The second single doping Mn increases the resistivity and the ratio of the resistance to the drag-resistance. The second Yb. Mn co-doping can reduce the resistivity, improve the drag ratio, and explore the mechanism of their interaction. Yb: Mn = 1: 1 works best.