| 摘要 |
The purpose of the present invention is to provide an insulation layer formation material and an insulation layer formation paste capable of forming an insulation layer on a metal substrate without the filler and glass reacting or warping occurring, even when repeatedly fired at 850°C or higher. The insulation layer formation material containing a lead-free glass composition and an α-quartz filler contains 17.0-40.0 wt% of the α-quartz filler and 60.0-83.0 wt% of the lead-free glass composition, the α-quartz filler having an average grain size (D50) of 1.0-3.5 µm and a specific surface area of 2.5-6.5 m2/g, and the lead-free glass composition containing no B2O3, and comprising a composition of, by mol%, 40.0-60.0% SiO2, 0.5-10.0% Al2O3, 20.0-45.0% MgO + CaO + SrO + BaO, 5.0-23.0% ZnO, and 0-10.0% Li2O + Na2O + K2O. |
