Laser modification of properties of the surface layer of conducting materials

Franciszek Kostrubiec; Ryszard Pawlak; Maria Walczak

doi:10.1117/12.520717

6 October 2003 Laser modification of properties of the surface layer of conducting materials

Franciszek Kostrubiec, Ryszard Pawlak, Maria Walczak

Proceedings Volume 5229, Laser Technology VII: Applications of Lasers; (2003) https://doi.org/10.1117/12.520717
Event: Laser Technology VII: Applications of Lasers, 2002, Szczecin, Poland

Abstract

This paper presents the results of modification of surface layer properties, obtained the optimised laser alloying of metals insignificant in electrical engineering. Systems with continous, quasi-continuous and pulsed laser beams and different wave lengths were used in the experiments. The structure and composition of the alloyed layers were examined by means of SEM-microscopy and an EDX analyser. The changes of electrical resistivity after laser alloying were measured in a temperature range of 77-450 K. It has been shown that the formation of alloyed lasers for metals with limited solubility (Ag-Sn), insoluable (Mo-Au, Cu-Cr), and even immiscible metals (Ni-Au, Ag-Ni) is possible. It is also possible to obtain alloyed layers with non-metallic additions (oxide). The investigations have shown how alloyed layers with strongly modified properites, especially electrical resistivity, can be obtained by means of different laser beams and various methods for the supplying of alloying elements.

Citation Download Citation

Franciszek Kostrubiec, Ryszard Pawlak, and Maria Walczak "Laser modification of properties of the surface layer of conducting materials", Proc. SPIE 5229, Laser Technology VII: Applications of Lasers, (6 October 2003); https://doi.org/10.1117/12.520717

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