| Autor: |
Nasikas NK; Division of Mathematics and Engineering Sciences, Department of Military Sciences, Hellenic Army Academy, Vari, 16673 Athens, Greece., Petousis M; Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece., Papadakis V; Department of Industrial Design and Production Engineering, University of West Attica, 12243 Athens, Greece.; Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, N. Plastira 100m, 70013 Heraklion, Greece., Argyros A; Physical Metallurgy Laboratory, Mechanical Engineering Department, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.; Centre for Research & Development of Advanced Materials (CERDAM), Center for Interdisciplinary Research and Innovation, Balkan Centre, Building B', 10th km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece., Valsamos J; Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece., Gkagkanatsiou K; Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece., Sagris D; Department of Mechanical Engineering, International Hellenic University, Serres Campus, 62124 Serres, Greece., David C; Department of Mechanical Engineering, International Hellenic University, Serres Campus, 62124 Serres, Greece., Michailidis N; Physical Metallurgy Laboratory, Mechanical Engineering Department, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.; Centre for Research & Development of Advanced Materials (CERDAM), Center for Interdisciplinary Research and Innovation, Balkan Centre, Building B', 10th km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece., Maravelakis E; Department of Electronic Engineering, Hellenic Mediterranean University, 73133 Chania, Greece., Vidakis N; Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece. |
| Abstrakt: |
This study aimed to investigate the potential of antimony-doped tin oxide (ATO) as a reinforcing agent for polyamide 12 (PA12) in 3D printing by examining four mixtures with varying ATO concentrations (2.0 to 8.0 wt.%, with a 2.0 wt.% interval). These mixtures were used to fabricate filaments for the manufacturing of specimens through the material extrusion method. The mechanical properties of the resulting PA12/ATO composites and PA12 pure samples were evaluated through tensile, Charpy impact, flexural, and microhardness tests. Additionally, rheology, structure, morphology, thermal properties, pore size, and consistency in the dimensions of the samples were evaluated. Thermogravimetric analysis, along with differential scanning calorimetry, scanning electron microscopy, energy-dispersive and Raman spectroscopy, and micro-computed tomography, were conducted. The results were correlated and interpreted. The greatest reinforcement was achieved with the PA12/ATO 4.0 wt.% mixture, which exhibited a 19.3% increase in tensile strength and an 18.6% increase in flexural strength compared with pure PA12 (the control samples). The Charpy impact strength and microhardness were also improved by more than 10%. These findings indicate the merit of composites with ATO in additive manufacturing, particularly in the production of components with improved mechanical performance. |
