Electronic equipment cover board crystallized glass article and devitrified glass

Electronic equipment cover board crystallized glass article and devitrified glass

  • CN 109,320,091 A
  • Filed: 10/26/2018
  • Published: 02/12/2019
  • Est. Priority Date: 10/26/2018
  • Status: Active Application
First Claim
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1. electronic equipment cover board crystallized glass article, which is characterized in that its principal crystalline phase contains lithium metasilicate and quartz crystal,Composition indicates by weight percentage, contains:

  • SiO2;

    65~85%, Al2O3;

    1~15%, Li2O;

    5~15%, ZrO2;

    0.1~10%, P2O5;

    0.1~10%, K2O;

    0~10%, MgO;

    0~10%, ZnO;

    0~10%, Na2O;

    0~5%, wherein (SiO2+Al2O3+Li2O+ZrO2)/P2O5It is 40~90, falling ball impact test height is 700mm or more.

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