【摘要】 通过钒酸锶电阻特性的研究，评估其作为电阻型氧敏传感器的可能性．实验中测量了不同温度下钒酸锶陶瓷片的体电阻和不同温度、不同氧压下的表面电阻，对实验数据进行数学处理后，得到钒酸锶材料的一些性质：相变对其电阻特性的影响很小；体电阻和面电阻的激活能分别为1．31eV和191eV；表面电阻的氧敏因子m＝6；温度系数相对较大．所以钒酸锶要作为尾气传感器材料，需考虑进行表面改性．更多还原

【Abstract】 The possibility of Sr2V2O7 to be a resistive oxygen-sensitive material was evaluated by studying its electrical properties, bulk and surface resistances of ceramic Sr2V2O7 at different temperatures and/or oxygen partial pressures were measured experimentally. After mathematical processof the data, some properties of Sr2V2O7 were achieved. Phase transformation has little influenceon the electrical properties, the activation energies for surface and bulk conductances are 1.91eVand 1.31eV respectively, It has an oxygen sensitive factor m=6 and a relative high temperature coefficient. Sr2V2O7 needs surface modification if it serves as a potential exhaust gas sensor material.更多还原