Diffusion bonding of surface layers of an alloy, such as an aluminum alloy, having surface oxides of low solubility in the alloy includes treating the surface layers to be bonded to remove existing surface oxide coatings, and diffusion bonding the surface layers to one another by placing the alloy to...http://www.google.com.au/patents/US4732312?utm_source=gb-gplus-sharePatent US4732312 - Method for diffusion bonding of alloys having low solubility oxides
