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- Title
Thermal and Electrical Conductivity of 99.9% Pure Copper Processed via Selective Electron Beam Melting.
- Authors
Raab, Sebastian J.; Guschlbauer, Ralf; Lodes, Matthias A.; Körner, Carolin
- Abstract
This paper investigates the physical properties of 99.91% pure copper produced by Additive Manufacturing via selective electron beam melting (SEBM). Eddy current measurements and laser flash analyses are used to determine the electrical and the thermal conductivity. Electrical and thermal conductivity follow the Wiedemann-Franz law. The correlation of conductivities and porosity shows that 99.95 % dense components with nearly optimal conductivities (σ55.82 MS m-1 and λ=400.1Wm-1 K-1) can be fabricated with SEBM. The small deviation from the theoretical maximum of copper (59.7 MS m-1) can be explained by the characteristics of the raw material and chemical impurities.
- Subjects
THREE-dimensional printing; ELECTRON beam testing; THERMAL conductivity
- Publication
Advanced Engineering Materials, 2016, Vol 18, Issue 9, p1661
- ISSN
1438-1656
- Publication type
Article
- DOI
10.1002/adem.201600078