GLASS CERAMIC FOR COATING METAL SUBSTRATE

摘要

The present invention relates to a glass ceramic which can provide a board comprising a metal substrate and the glass ceramic coated on said substrate, particularly a board comprising said board and a fine wiring pattern applied onto said board by means of thick film printing. The composition of the glass ceramic is 3-40% of of La2O3 or CeO2, 20-50% of MgO, 1-20% of CaO, 0-15% of BaO, 10-30% of B2O3, 8-20% of SiO2, 0-5% of MO2, M being at least one metal selected from Zr, Ti, Sn and 0-5% of P2O5, all in terms of % by weight.