The Effect of Selective Laser Melting Process on the Microstructure, Density, and Electrical Conductivity of Silver-Coated Copper Cores

VAROL T., Hacısalihoğlu İ., Kaya G., GÜLER O., Yıldız F., Aksa H. C., ...More

Journal of Materials Engineering and Performance, vol.30, no.7, pp.5216-5226, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 7
  • Publication Date: 2021
  • Doi Number: 10.1007/s11665-021-05712-5
  • Journal Name: Journal of Materials Engineering and Performance
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.5216-5226
  • Keywords: core-shell particles, electroless plating, selective laser melting, silver-coated copper cores, SHELL NANOPARTICLES, MATRIX COMPOSITES, POWDER, PARAMETERS, PARTICLES, PLASMA
  • Karadeniz Technical University Affiliated: Yes

Abstract

© 2021, ASM International.In this study, compact materials were fabricated by selective laser melting (SLM) method using copper-silver core-shell particles obtained by electroless coating method. The effect of SLM parameters such as laser power, scanning speed and hatch spacing on the important properties such as microstructure, density and electrical conductivity of compacts produced from core-shell particles was investigated. This study significantly contributes to the fact that the parameters used in the fabrication of copper-silver-based materials with the SLM method directly affect the properties of the compacts. The results showed that the silver shell thickness obtained on the core of copper powders by electroless plating method varied between 1 and 3 μm and was distributed homogeneously. It was also found that the highest apparent density value among all samples was obtained above about 99% from the sample where 100 W power, 250 mm/s scanning speed and 45% hatch spacing values were used. In addition the highest electrical conductivity value was obtained for these conditions.