Title:
ビスマス系材料、タブレット及びタブレット一体型排気管
Document Type and Number:
Japanese Patent JP5403476
Kind Code:
B2
Abstract:
[PROBLEMS] To provide a bismuth-base glass composition which can be well softened in heat treatment such as sealing and can crystallize satisfactorily after being softened and which is little re-softened after crystallization in heat treatment such as evacuation. [MEANS FOR SOLVING PROBLEMS] A bismuth-base glass composition characterized by having a composition which comprises by mass 60 to 84% of Bi2O3, 5.4 to 15% of B2O3, 10 to 27% of ZnO, 0 to 7% of CuO, and 0 to 5% of Fe2O3 and contains BaO, SrO, MgO and CaO in a total amount of 0 to 10% and SiO2 and Al2O3 in a total amount of 0 to 5% and being substantially free from PbO.
Inventors:
Masayuki Horimoto
Kentaro Ishihara
Kentaro Ishihara
Application Number:
JP2007275073A
Publication Date:
January 29, 2014
Filing Date:
October 23, 2007
Export Citation:
Assignee:
Nippon Electric Glass Co., Ltd.
International Classes:
C03C8/04; C03C8/24; C03C10/02; H01J11/46; H01J11/48; H01J11/54