ZnCr_2O_4-V_2O_5-Li_2O-ZnO湿敏材料的感湿机理  

THE HUMIDITY SENSING MECHANISM OF ZnCr_2O_4-V_2O_5-Li_2O-ZnO HUMIDITY-SENSITIVE MATERIAL

作　　者：付恒磊[1] 徐天华[1] 

机构地区：[1]青岛大学物理科学学院,青岛266071

出　　处：《陶瓷学报》2008年第3期230-232,共3页Journal of Ceramics

摘　　要：测试了ZnCr2O4-V2O5-Li2O-ZnO材料的感湿特性,与水的导电特性进行比较,二者的电导值出现看似矛盾的结果。通过对电子电导和离子电导的分离测试,提出了该材料感湿状态下高电导的形成机理,从而解释了上述实验结果。The Humidity-Sensitive and conductive properties of ZnCr2O4-V2O5-Li2O-ZnO were tested. Contradictory result of ZnCr2O4-V2O5-Li2O-ZnO and H2O＇s conductance value showed up when the conductive properties of these two substances were compared. The Humidity-Sensitive principle of ZnCr2O4-V2O5-Li2O-ZnO under moist state that could explain the contradiction was raised according to the separate tests of the Electronic conductance and Ionic conductance.

关 键 词：湿敏材料 本体电导 电子电导 离子电导 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]