Patent ID: 9227274
Filing Date: 2016-01-05
CPC Classification: B23K,Y10T

Claim Text:
1. Method of joining two or more articles through a bonding medium reinforced by graphite nanomaterials, the method comprising: (i) dispersion of graphite nanomaterials comprising at least one of carbon nanotubes and carbon nanofibers within a volume which includes a dispersant and particles which form said bonding medium via melting during joining at elevated temperature, with weight ratio of the nanomaterials to said particles ranging from 0.05% to 0.15%, with surfaces of said nanomaterials are modified to facilitate dispersion of the nanomaterials and to increase their interfacial interactions with said bonding medium; (ii) application of said dispersion incorporating surface modified nanomaterials, dispersant and particles on at least one joining surface of said articles, and heating the applied dispersion in order to remove any volatile constituents; (iii) bringing the joining surfaces of said articles into contact; (iv) heating the contacting surfaces in order to melt said particles in the bonding medium, with the molten bonding medium wetting the joining surfaces of said articles, and surfaces of said nanomaterials; and (v) cooling the contacting surfaces to join said articles via the reinforced bonding medium which is solidified, bonded to joining surfaces, and enhanced by surface modified graphite nanomaterials.