| 简介 |
A white opaque glass The invention concerns, in particular a white opaque glass sheet with a glass composition comprises the following components in wt- % on an oxide basis : SiO 250-70 wt.- % Li 2 O0-15% in weight Na 2 O0-20 wt- % K 2 O0-5 wt- %, wherein Σ (2 O2 O 2 O + K + Na Li) ≤ 20 wt- % ZnO 0-5% in weight Al 2 O30-15% in weight B 3 2 O0-5% in weight TiO 20-5% in weight ZrO 20-5 wt- %, (2 2 + TiO PbO + ZrO) < 10 wherein Σ wt- % (ZrO 2 2 + TiO) Σ < 5 wherein, 1% by weight Sb 2 O30-2 wt- % F 0-10 wt.- % BaO 0-2 wt- % MgO 0-2 wt- % CaO 0-2 wt- % SrO 0-2 wt- %, wherein Σ (MgO + CaO + SrO + BaO + ZnO) < 7 wt.- % (MgO + CaO + SrO + BaO) Σ < 2 wherein, 1% by weight PbO 0-10 wt.- % P 2 O50-2 wt- % for use in the housing of electronic devices, in particular mobile electronic devices, a smartphone preferably, Tablet-PC, quite electronic devices preferably, in particular a smartphone, Tablet-PC with near field communication devices |
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