The system: PbO-SiO2

Abstract

The system PbO-Si0 2 , of interest to investigators and manufacturers of ceramic glazes and glasses, was investigated. The following compounds were identified and their optical properties, linear thermal expansion, and melting temperatures determined: 4PbO.Si0 2 , 2PbO.Si02, and PbO.Si0 2 . The compositions and melting points of three eutectics were determined also.