LITHIUM SILICATE GLASS CERAMIC

The invention relates to a lithium silicate glass ceramic, which contains at least lithium disilicate as a crystal phase, and lithium aluminum silicate as further crystal phase. The lithium silicate glass ceramic in its initial composition contains AI2O3 at 1.5 to 3.5 percent by weight, and K2O at 0...

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Bibliographische Detailangaben
Hauptverfasser: VOLLMANN, MARKUS, MEEGDES, MARCEL, WISSEL, IRMGARD, WIESNER, CARSTEN
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:The invention relates to a lithium silicate glass ceramic, which contains at least lithium disilicate as a crystal phase, and lithium aluminum silicate as further crystal phase. The lithium silicate glass ceramic in its initial composition contains AI2O3 at 1.5 to 3.5 percent by weight, and K2O at 0.6 to 1.8 percent by weight. L'invention concerne une vitrocéramique à base de silicate de lithium, contenant au moins du disilicate de lithium comme phase cristalline et du silicate d'aluminium et de lithium comme autre phase cristalline. La vitrocéramique à base de silicate de lithium selon l'invention contient, dans sa composition initiale, de 1,5 à 3,5% en poids de AI2O3, et de 0,6 à 1,8% en poids de K2O.