Brazing of copper to copper using phosphor–copper brazing filler metal has been carried out using vacuum brazing technology. The wettability, melting performance, microstructure and phase constitution in the joint were studied by means of differential thermal analysis, metallography, energy dispersive X-ray detector and X-ray diffraction. Experimental results obtained showed that the structure in the joint consisted of hypoeutectic alloy. The primary phase is copper solid solution (α(Cu)) and silver solid solution (α(Ag)). The eutectic phase is copper solid solution (α(Cu)), silver solid solution (α(Ag)) and Cu3P. The optimum process parameters are: brazing temperature T = 820–850°C, vacuum level p = 10−3 Pa, holding time t = 5–10 min.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.