| abstract |
[57] [Problem] To provide a lead-free glass and a lead-free glass powder capable of increasing the transparency of electrode coating. In mol%, Bi 2 O 3 33-45%, B 2 O 3 26-40%, SiO 2 3-22%, Al 2 O 3 3-20%, CeO 2 0-3%, S Lead-free glass with iO 2 + Al 2 O 3 ≦ 35 mol%. Also, Bi 2 O 3 ≧ 33 mol% lead-free glass powder, 50% particle diameter is 5 μm or less, and 10 mg Of the powder in a vacuum with a pressure of 1 × 10 −6 Pa or less. 3 when heated to 500 ° C at a rate of temperature rise of ℃ / min The amount of carbon dioxide generated at 00-500 ° C is 100 x 1 0 -8 g or less lead-free glass powder. |