Effect of potassium nitrate treatment on the adsorption properties of silica porous glasses

Abstract The effect of treatment in KNO3 solution on the properties of silica porous glasses is presented. An interferometric method was used in determining the influence of humidity on the change in linear sizes and bending deflection of porous glass specimens before and after treatment. The influence of KNO3 processing on effusion properties of porous glasses for use as the scleral part of an eye prosthesis was investigated. Obtained results confirm the influence of secondary silica gel present inside pores on the adsorption properties of porous glasses.