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采用硬脂酸凝胶法新工艺在α－Fe2O3－K2O复合体系中掺入TiO2.XRD、BET比表面吸附、Archimede排水法等手段对掺钛α－Fe2O3－K2O纳米陶瓷分析表征结果表明，适量掺杂TiO2，材料仍保持α－Fe2O3的刚玉结构，且具有很高的热稳定性，但抑制了主晶相晶粒成长，增大了材料比表面积及孔隙率．电性能及湿敏特性测试结果表明，适量掺杂TiO2，降低了材料固有电阻，显著减小了材料湿滞；认为钛掺杂使材料晶粒细化；从而使K+更加分散地沉积在α－Fe2O3晶粒表面非晶壳层中，是改善材料湿滞的主要原因．
The new technology of stearic acid gel was used to incorporate TiO2 in the α-Fe2O3-K2O composite system. The results of XRD, BET specific surface adsorption and Archimede water drainage showed that the suitable amount of α-Fe2O3-K2O nano- Doped TiO2, the material still maintain α-Fe2O3 corundum structure, and has high thermal stability, but inhibited the growth of the main crystalline grain, increasing the specific surface area and porosity of the material. The test results of electrical property and moisture sensitivity show that the proper doping of TiO2 reduces the inherent resistance of the material and significantly reduces the material’s wet hysteresis. It is considered that the doping of titanium dominates the grain size of the material, so that K + Fe2O3 grain surface amorphous shell, is to improve the material wet lag the main reason.