Glass sheet designed to be heat tempered

摘要

The subject of the invention is a glass sheet intended to be thermally toughened, the matrix of which is of the silica-soda-lime type, having an expansion coefficient alpha of greater than 100x10^-7 K^-1, a Young's modulus E of greater than 60 GPa and a thermal conductivity k of less than 0.9 W/m.K.