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- Title
Electromagnetic wave absorption and mechanical properties of 3D-printed PLA composite reinforced with graphene and iron (III) oxide for X-band absorbers.
- Authors
Amudhu, L. B. Thamil; Samsingh, R. Vimal; Florence, S. Esther; Prakash, C. Arun
- Abstract
Polymer composite materials are essential for enhancing the survivability and effectiveness of military assets in stealth-based military and defense industries because of their lightweight, radar-absorbing characteristics, and mechanical robustness. In the present work, various concentrations of graphene (G) and Fe2O3 (F) particles as reinforcement were incorporated into the polylactic acid (PLA) matrix to fabricate novel 3D-printed PLA/G/F composites using fused deposition modeling (FDM). The impact of these reinforcements on the mechanical and microwave absorption properties of the composites were analyzed using X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). Detailed investigations were conducted on tensile, flexural, and compressive properties of the composites with different reinforcement contents. The ultimate strength of the PLA/5G/5F composite was remarkably improved than pure PLA. In terms of microwave absorption property, the reflection loss (RL) of the PLA/5G/5F composite showed maximum reflection loss of − 30.37 dB at 11.71 GHz with a thickness of 2.5 mm in the frequency range of 8–12 GHz. Thus, this novel 3D-printed PLA/G/F composites prepared by FDM approach had good microwave absorption, load-bearing properties, and thermal stability. This suggested that microwave-absorbing materials fabricated through FDM technique could indicate a promising future direction for this kind of material.
- Publication
Journal of Materials Science: Materials in Electronics, 2024, Vol 35, Issue 18, p1
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-024-13086-2