since it is the tin which dissolves the silver.
Wait, do you actually understand the process by which metals are adhered to ceramics?
Could you explain please?
I've always wondered how that is done. Things like ceramic vacuum tube bodies, large triacs and diodes, etc, where metal parts are joined to the ceramic.
I can understand how glass to metal seals work, like with valve leads. The hot molten glass 'wets' the metal and sticks. But ceramics?
And is that process the same as Tektronix used to put a metal coating in those ceramic tag strips slots, that solder wets?
So it's a silver plating on ceraic, and if the silver is dissolved into the solder, the metal-ceramic bond fails?