Patent ID: 9593039
Date: 2017-03-14
CPC Classifications: C03B,C03C

Claim:
1. A nanostructured vitroceramic, either transparent or translucent, with essentially zero Li 2 O content and zero Al 2 O 3 content, containing 97% to 100% by weight in relation to the overall weight of the material, of a composition of the following formula I: where Oxy Oxy 0≦x≦98, and 0≦y≦60, and x and y are not simultaneously zero, and 0≦z≦20, x, y, z are such that 40≦x+y+z≦98, 0.1≦x≦50, 0≦b≦35, and 0≦k≦7, and x, y, z, a, b and k are such that x+y+z+a+b+k=100.