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Also the reason why Gorilla glass, which is mechanically similar (even though the production process is different), is extremely impact resistant but can fail c
by scoot 14y ago
Also the reason why Gorilla glass, which is mechanically similar (even though the production process is different), is extremely impact resistant but can fail catastrophically if nicked.
- raverbashing 14y agoActually Gorilla glass is chemically treated for better resistance
- oneandoneis2 14y agoYes, but the chemical treatment works by setting up the same kind of internal stresses - IIRC, it replaces the Sodium atoms in the glass with Potassium, and it's the size difference that does the magic.
- ricardobeat 14y ago"Specifically, glass is placed in a 400°C molten potassium salt bath, which forces potassium ions to replace the sodium ions originally in the glass. The larger potassium ions take up more space between the other atoms in the glass. As the glass cools, the crunched-together atoms produce a high level of compressive stress in the glass that helps protect the surface from mechanical damage."