【摘要】 在实验室条件下,自制了MgS与TiS₂两种硫化物,组成MgS—2％TiS₂′wt)并经过高温烧结处理。用MgS—2％TiS₂固体电解质组成硫浓差电池: Mo[[S]Fe][MgS-2％TiS₂（wt）]Mo,MoS₂]Mo于1375℃无保护气氛条件下进行了铁液定硫的试验。所测电势E与化学分析的[％S]关系为log[％S]=-0.3694-0.0077E（mV）（[％S]:0.013～0.134）。于1375℃下还测试了Cu-Cu2S系的硫位。推算出表征固体电解质电子电导率大小的特征硫分压Pc’对MgS—2％TiS₂来讲为6×10^-4pa。引入pe’和硫活度系数f_s对E—[％S]关系进行了修正。更多还原

【Abstract】 MgS and TiS2 were made at lab and the MgS-TiS2(2%) disks were sintered at high temperature. A sulfur sensor using the MgS-based solid electrolyte was prepared and the galvanic cell can be expressed by Mo |[S]Fe | MgS-TiS2(2%) | Mo, MoS2 | Mo. The sulfur determination in liquid iron was carried out at 1375℃ without any protective atmosphere. The relation between the measured E and the chemical analysis [%S] can be shown as los[%S]= -0.3694-0.0077E(mV)([%S], 0.003-0.134). Also,the dete- rmination of the sulfur potential of the ( u-Cu2S system shows that the partial electronic conduction parameter Pe’ is 6×10-4Pa for the MgS-TiS2(2%) solid electrolyte at 1375℃.Pe’and fs were introduced for the correction of the E-[%S] relation.更多还原