Task: Translation
Input (Czech): Sklokeramická hmota je provedena s alespon jednouoxidovou keramikou, která obsahuje baryum, titan a alespon jeden kov vzácných zemin Rek, s alespon jedním skleneným materiálem, který obsahuje alespon jeden oxid boru, alespon jeden oxid kremíku a alespon jeden oxid alespon jednoho dvojmocného kovu Me.sup.2+.n. a alespon jeden oxid bismutu. Podíl oxidu olova a/nebo podíl oxidu kadmia ve sklokeramické hmote a/nebo v oxidové keramice a/nebo ve skleneném materiálu ciní maximálne 0,1 %. Keramické teleso obsahuje tuto sklokeramickou hmotu.
Output (English): The present invention relates to a glass-ceramic composition comprising at least one oxide ceramic containing barium, titanium and at least one rare earth metal Rek, and at least one glass material containing at least one boron oxide, at least one silicon oxide and at least one oxide of at least one divalent metal Mee2+ as well as at least one bismuth oxide. Preferred Features: The oxide ceramic has a formal composition of BaRek2Ti4O12. The proportion of a lead oxide and/or the proportion of cadmium oxide in the invented glass-ceramic composition and/or in the oxide ceramic and/or in the glass material are at the most 0.1 percent. The invention also relates to a ceramic body containing the above-described glass-ceramic composition.