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. 2024 Apr 25;14(9):753. doi: 10.3390/nano14090753

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© 2024 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Properties of printed and sintered Cu samples. (a) Comparison of porosity for bar-coated and inkjet-printed samples obtained through cross-sectional SEM image analysis (Figure 4). (b) Arithmetical mean height (surface roughness) of the top surface of 100 µm thick bar-coated and inkjet-printed samples. (c) Indentation hardness. (d) Creep distance over 5 s as a fraction of maximum plastic deformation. The results are presented as a fraction of the bulk Cu measurement. The standard deviation for each test is plotted as an error bar.