Compared to soldering, brazing is the joining of metal and ceramic components using a molten filler metal that melts above 850ºF (450ºC). Filler metals include Al-Si, Cu-Ag, Cu-Mn, Cu-P, Cu, Ag, Au, and Ni-Cr-Si and Ni-Cr-Si-B as well as other less used metal fillers, that will wet and adhere to metals and, in special cases, to ceramics. When brazing to ceramics, active elements such as Ti, Hf, Zr and V have been added to filler metals. The addition of these reactive elements permits them to react with the ceramic surfaces during brazing, but only in a vacuum atmosphere.

The major types of brazing are:

• Flux brazing
• Torch (or other concentrated heat source)
• Resistance
• Furnace
• Dip Brazing (mainly used for aluminum)

Please Contact Us to assist you with this specialized braze process and for any vacuum braze processing requirements you may have.