I feel a little silly for asking this, but I thought I'd ask since there are so many glaze chemistry experts here.
In addition to pottery, I make knives and swords. A few months ago, I found a Greek dagger from the hellenistic period I fell in love with (Link). I'd like to reproduce it with silver rather than gold (I'm poor and gold is expensive). I thought I'd ask about the enamels here since they're so similar to glazes. It's likely silly of me to try to make my own, but I'm one of those types who would rather make things myself than buy them if possible. There's also a practical reason for this as hard silver solder flows at the same or lower temperature than commercial enamels. Hard solder flows at 1450 F, commercial enamels fire at around 1400-1500.
Given that the COE of commercial enamels(oops! that said glazes before) is about 258-360 (cubic expansion), could I formulate a homemade enamel with a melting point below the flow temp of hard solder from commonly available glaze materials?