Study on the glassy and conductive properties of SiO2-B2O3-P O-2(5)-Al2O3-MxOy system

The resistive plate chamber (RPC) is a gaseous parallel-plate detector,the glass resistive plate is the key element of RPC. In order to meet the requirement of high flux particle detection, it is urgent to develop low resistivity electroconductive glass. For this purpose, we designed the glass of SiO2-B2O3-P O-2(5)-Al2O3-MxOy system,the KOy was chosen as Fe2O3, V2O5 and MnO2.In this paper, the formation abilities and conductive properties of glass were studied by adjusting the contents of the glass forming body and MxOy. The results showed that P2O5-Al2O3 and P2O5-B2O3 built a quasi[SiO4] tetrahedron structure as the glass forming body, the SiO2 strengthened the network, which greatly improved the stability of the glass. Meanwhile, the addition of B2O3 and P2O5 could enhance the doping ability of KOy in the whole glass system, which was benefit to reduce the resistivity of glass. Three transition metal oxides were added to the same base glass, and their resistivity was in order: rho(Fe) 更多