Crystallisable glass and the use thereof for producing extremely solid and break-resistant glass-ceramics having an easily polished surface

The invention relates to crystallizable aluminosilicate magnesium-containing glass which is used for producing extremely solid and break-resistant glass-ceramics having an easily polished surface. The inventive crystallizable glass contains 5-33 mass % of SiO2, 25-40 mass % of Al2O3, 5-25 mass % of...

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Bibliographische Detailangaben
1. Verfasser: SPRENGER DIRK,ZACHAU THILO,LIEBALD RAINER
Format: Patent
Sprache:eng
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Zusammenfassung:The invention relates to crystallizable aluminosilicate magnesium-containing glass which is used for producing extremely solid and break-resistant glass-ceramics having an easily polished surface. The inventive crystallizable glass contains 5-33 mass % of SiO2, 25-40 mass % of Al2O3, 5-25 mass % of MgO, 0-15 mass % of B2O3, 0.1-30 mass % of Y2O3, Ln2O3, As2O3 and/or Nb2O5 and 0.1-10 mass % of P2O5.