| abstract |
(57) [Problem] To provide a glass material having characteristics equivalent to those of a conventional sealing material, insulating coating material, etc., even if it does not contain a lead component. SOLUTION: SnO 30 to 70% by mole%, P 2 O 5 20-45%, lanthanoid oxide 0.1-2 5%, ZnO 0-20%, MgO 0-20%, Al 2 O 3 0-10%, SiO 2 0-15%, B 2 O 30 ~30%, R 2 O (R is Li, Na, K, Cs) 0~ It consists of a glass having a composition of 20%. As the lanthanoid oxide, it is preferable to use one or more selected from La 2 O 3 , CeO 2 and Gd 2 O 3 . Further, a refractory filler powder may be added to the glass to form a composite material. |