Coating of glass-based assembly

A glass-based assembly, comprising:

• a glass substrate comprising a surface, wherein glass of the glass substrate breaks when stretched beyond a fracture strain thereof, wherein the glass of the glass substrate is a non-silicate glass such that the glass comprises less than 20 mol % silica;
• wherein the glass of the glass substrate is stiff, having a modulus of elasticity greater than 100 GPa;
• wherein the glass of the glass substrate is brittle, having a fracture toughness less than 0.8 MPa·m1/2;
• and
• a coating layer coupled to the glass substrate, wherein the coating layer overlays at least a portion of the surface of the glass substrate;
• wherein the thickness of the coating layer is less than 2 μm, while the thickness of the glass substrate is greater than 400 μm;
• wherein stretching of coating of the coating layer to the fracture strain of the glass of the glass substrate does not fracture the coating;
• wherein the coating layer has a modulus of elasticity that is less than 1.1 times that of the glass of the glass substrate, wherein the modulus of elasticity of the coating of the coating layer is greater than 20 GPa;
• and
• wherein ultimate strength of the glass substrate with the coating layer overlaying and coupled thereto at least 20 MPa greater than that of the glass substrate alone, without the coating layer.

A glass-based assembly, comprising:

• a glass substrate comprising a surface, wherein glass of the glass substrate breaks when stretched beyond a fracture strain thereof, wherein the glass of the glass substrate is a non-silicate glass such that the glass comprises less than 20 mol % silica, and wherein the glass of the glass substrate has a modulus of elasticity greater than 100 GPa;
• and
• a coating layer coupled to the glass substrate, wherein the coating layer overlays at least a portion of the surface of the glass substrate,
• wherein stretching of coating of the coating layer to the fracture strain of the glass of the glass substrate does not fracture the coating, wherein the coating has a modulus of elasticity greater than 20 GPa;
• and
• wherein ultimate strength of the glass substrate with the coating layer overlaying and coupled thereto is greater than that of the glass substrate alone, without the coating layer;
• wherein stretching the glass-based assembly to the fracture strain of the glass of the glass substrate does not delaminate the coating layer from the glass substrate;
• wherein the coating layer blocks water vapor in air at 250 C, 70% relative humidity, standard atmospheric pressure from reaching the glass substrate underlying the coating layer.