Alkali-free glass

Alkali-free glass

  • CN 105,339,318 A
  • Filed: 06/24/2014
  • Published: 02/17/2016
  • Est. Priority Date: 06/27/2013
  • Status: Active Application
First Claim
Patent Images

1. a non-alkali glass, wherein, the Young'"'"'s modulus of described non-alkali glass is more than 90GPa, shrinking percentage C1 is below 5ppm, and shrinking percentage C2 is below 50ppm,In the quality % of oxide compound benchmark, described non-alkali glass contains:

  • SiO 240~

    65、

    Al 2o 3be greater than 23.5 and be less than or equal to 30, MgO2.5~

    20、

    CaO2 ~ 30, andSiO 2+ Al 2o 3be more than 70 and less than 90.

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