The present invention also provides a hardened glass prepared in accordance with the methods and compositions of the present invention.

A piece of toughened glass (4) is arranged on the front side of the box body (1).

There are different variants of glass but toughened glass is the best option to use behind the hob.

Heat strengthened and toughened glass can be incorporated into laminated glass units to further strengthen the impact resistance.

Heat strengthened and tempered glass can be incorporated into laminated glass units to further strengthen the impact resistance.

Provided is a hardened glass substrate having a compressively-stressed layer on the surface.

The hardened glass substrate contains 40-71% SiO2, 3-21% Al2O3, 0-3.5% Li2O, 7-20% Na2O and 0-15% K2O by mass as glass composition.

Toughened glass is extremely durable and can withstand high temperatures without the fear of it cracking.

In its release, the iPhone 4 was noted for its minimalist aesthetic along with its new hardened glass (Gorilla Glass).

These blobs of "hardened glass" (glass is a liquid, in fact) are thought to come from meteorite impacts in most instances, but the evidence shows that in many cases there is no impact crater.

Furthermore, the double-sided tempered glass and the HD Super Retina can withstand even harder impacts.

The top layer of tempered glass coated with email on 25% of the surface for antiglare, will be sacrificial: In case of breakage the lift will remain ensured by the lower layers of hardened glass.

The top layer of tempered glass coated with email on 25% of the surface for antiglare, will be sacrificial: In case of breakage the lift will remain ensured by the lower layers of hardened glass.

While the inner glazing of a passive system is conventional double or triple insulating glass, for the outer single glazing a laminated safety glass (often consisting of heat strengthened glass) is typically used.