Glass and refractories, more than in other industrial segments, have been strictly connected all along a story that evolved in about six millennia. Refractory materials were used, in fact, well before the very concept of materials resistant to high temperature, abrasion and chemical aggression was developed. With the advent of shaped glass, and particularly container glasses (bottles) developed pouring glass around sand molds more than three millennia ago and then through blowing technology about two millennia ago, it was necessary to have available a decent amount of molten glass and, of course, some kind of container with acceptable stability and resistance to alkaline corrosion at the glass fusion temperature.
展开▼
