| 摘要 |
A glass-ceramic is disclosed, this glass-ceramic includes at least the following constituents (in mol % on oxide basis): SiO2 1-30, Al2O3 0-20, B2O3 0-25, TiO2 10-70, RE2O3 0-35, BaO 5-35, SiO2+Al2O3+B2O3<25, where RE is lanthanum, another lanthanoid, or yttrium, and where Ti may be replaced in part, preferably up to 10%, by Zr, Hf, Y, Nb, V, Ta. A principal phase in the glass-ceramic is BaTi4O. |
