Selective laser sintering (SLS) is an additive technology that opens up wide possibilities for creating parts with complex geometry. However, the properties of materials suitable for SLS often limit the functionality of the final products. In this regard, the development of new composite materials that combine the advantages of various components is a pressing issue.
One of the promising areas is the use of quasicrystals (QC) as a filler for polymer matrices. Quasicrystals, having a unique combination of aperiodic structure and metallic properties, can significantly improve the mechanical, thermal and electrical characteristics of polymer composites.
Selective laser sintering (SLS) is an additive manufacturing technology used to create functional components from three-dimensional models. SLS typically uses polymer composites reinforced with metal or ceramic elements. In this paper, a new composite powder containing quasi-crystalline AlCuFeB particles developed for use in SLS was investigated. The resulting parts exhibit a reduced friction coefficient and increased wear resistance compared to other composite materials used in SLS. In addition, the functional elements are characterized by high density and tightness, which makes them suitable for direct use in hydraulic systems.
This study demonstrates the adaptation of a quasi-crystalline polymer composite for SLS, resulting in parts with improved tribological properties and suitable for use in fluid systems. The developed material expands the range of materials compatible with SLS technology.
The introduction of QC into polymer materials for SLS requires careful selection of the polymer matrix and optimal filler concentration to achieve the required properties and ensure processability. Varying the laser sintering parameters allows controlling the microstructure of the composite and, therefore, its final characteristics. The resulting quasi-crystalline-polymer composites can find application in various fields, including aviation, automotive engineering, and biomedicine.
Author: S. Kenzari, D. Bonina, J. M. Dubois, V. Fournée
Institute: Institut Jean L’Amour, UMR 7198, CNRS, University of Nancy, Ecole Polytechnique Supérieure of Metz, School of Mines, Parc Sorup, 54042 Nancy, France