Sagot :
Answer:
Resistance to temperature changes
When glass is heated to a temperature below the lower annealing point, the thermal expansion and the poor thermal conductivity result in tensile and compressive stresses within the glass surface.
Answer:
Resistance to temperature changes
When glass is heated to a temperature below the lower annealing point, the thermal expansion and the poor thermal conductivity result in tensile and compressive stresses within the glass surface.