| 摘要 |
The invention relates to a composition comprising: (a) 22 –55 wt.% SiO2, (b) 2 –1 wt.% MO wherein M is Mg or Zn, (c) 15 –48 wt.% BaO, (d) 2 –30 wt.% Bi2O3, and (e) 0.5 –25 wt.% ceramic-based material and optionally, a liquid medium; wherein the amounts in wt.% of (a), (b), (c), (d) and (e) are based on the total weight of the composition excluding any liquid medium. The invention also relates to a method for providing a joint or a seal between a ceramic component and a substrate, wherein the method comprises the steps of: (i) providing a joining/sealing composition according to the invention, (ii) contacting the composition with the ceramic component and the substrate; and (iii) heating the composition to a sufficiently high temperature for said joint or seal between the ceramic component and the substrate to be formed. The invention further relates to a joint or a seal between a ceramic component and a substrate, said joint or seal comprising the joining/sealing composition according to the invention, to the use of the composition and joint according to the invention and to a device comprising a joint or a seal according to the invention. |
