08-30-2014, 03:26 PM
The repair technicians conducted three different tests -- a scratch resistance comparison using a tungsten carbide drill bit, a drop test with the sapphire display of the newly released Kyocera Brigadier, and a a four-point bend test to compare the failure stress and strain of sapphire glass with that of Gorilla Glass.
http://www.macrumors.com/2014/08/29/sapp...lla-glass/
http://www.macrumors.com/2014/08/29/sapp...lla-glass/
