However, high transparency has been realized by Ohara's nanocrystallization technology (particle diameter about 6 nm) which has a high track record in the space and astronomy fields. Since, crystal grains of glass ceramics are large, so it is difficult to transmit light and never used for optical applications. Moreover, it has grinding and polishing property which can shorten process time to about 1 / 20th of sapphire crystal glass. In addition, it has a 20% higher hardness than chemically strengthened glass, and showed more than 3 times higher impact resistance in steel ball drop impact test.Īlso, it has better fracture toughness than sapphire crystal glass, and cracks that cause breakage do not occur even if there are scratches and realizing a characteristic that is resistant to cracking.Īlthough it has the properties of hard ceramics, the cutting, polishing and moldability realized workability comparable to that of glass. Compared with general borosilicate glass, NANOCERAM™ has 30% higher hardness and showed more than 10 times higher impact resistance in steel ball drop impact test.
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