Search academic texts

Information × Registration Number 0219U102225, 0115U001629 , R & D reports Title Complex research of metallic and non-metallic nanofilms: barrier non-metallic nanofilms deposited onto the metal surface to prevent uncontrolled spreading of the solder during formation process of high-quality brazed joints; opportunity and peculiarity of metallic nanofilms deposition onto liquid surfaces. Investigation of metallized nanocoatings for non-metallic materials brazing with superthin brazed seams continuation popup.stage_title Head Hab Ivan I., Кандидат технічних наук Registration Date 23-12-2019 Organization Institute for Problems in Materials Science popup.description2 The purpose of the work is to study the structure of different thicknesses metal nanofilms deposited onto liquid surfaces; investigation of the barrier properties of non-metallic nanofilms on metals to prevent uncontrolled spreading of solder materials; investigation of the kinetics of dispersion during annealing of metallic nanofilms and thin double films onto oxides using for fabracation ultrathin (up to 2,5 mcm) solder seam. Al, W and C (5-100 nm) deposited onto liquid surfaces of organic matterials (castor oil, vacuum diffusion oil) and molten metal surfaces (In, Sn) were investigated. The properties of barrier non-metallic alumina and carbon nanofilms deposited onto the surface of copper and steel are investigated in order to prevent uncontrolled flow of solder materials. The kinetics of dispersion during annealing in vacuum of Cr, Ni, Mo, Ti, Zr and double metal films Ni-Cr, Ni-Ag, Cr-Cu, Cr-Ag, Nb-Ni, Nb-Cu, Nb-Pd, Hf -Cu, Hf-Pd deposited onto non-metallic materials (oxides) were investigated. On the basis of the obtained data, 9 technologies of soldering and pressure welding of parts made of oxide materials, metallized by the above metals by solders based on Ag, Cu, Ni, have been developed and as result minimum thickness of solder seams (2,5 mcm) have been achieving . Product Description popup.authors Kostyuk Boris D. Martyniuk Stepan I. Stetsyuk Tatiana V. popup.nrat_date 2020-04-02 Close