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Appl. Sci. 2017, 7(3), 250; doi:10.3390/app7030250

Novel Composite Powders with Uniform TiB2 Nano-Particle Distribution for 3D Printing

1
State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
2
Department of Mechanical Engineering, University of Leuven (KU Leuven), Leuven 3001, Belgium
3
Unité Matériaux et Transformations, CNRS UMR 8207, Université Lille 1, Villeneuve d’Ascq 59655, France
4
Department of Chemistry, University of Leuven (KU Leuven), Leuven 3000, Belgium
5
Department of Materials Engineering, University of Leuven (KU Leuven), Leuven 3000, Belgium
*
Authors to whom correspondence should be addressed.
Academic Editor: Giorgio Biasiol
Received: 5 January 2017 / Revised: 3 February 2017 / Accepted: 16 February 2017 / Published: 6 March 2017
(This article belongs to the Special Issue Materials for 3D Printing)
View Full-Text   |   Download PDF [1356 KB, uploaded 6 March 2017]   |  

Abstract

It is reported that the ductility and strength of a metal matrix composite could be concurrently improved if the reinforcing particles were of the size of nanometers and distributed uniformly. In this paper, we revealed that gas atomization solidification could effectively disperse TiB2 nanoparticles in the Al alloy matrix due to its fast cooling rate and the coherent orientation relationship between TiB2 particles and α-Al. Besides, nano-TiB2 led to refined equiaxed grain structures. Furthermore, the composite powders with uniformly embedded nano-TiB2 showed improved laser absorptivity. The novel composite powders are well suited for selective laser melting. View Full-Text
Keywords: 3D printing; nanocomposites; powders; laser absorptivity 3D printing; nanocomposites; powders; laser absorptivity
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Chen, M.; Li, X.; Ji, G.; Wu, Y.; Chen, Z.; Baekelant, W.; Vanmeensel, K.; Wang, H.; Kruth, J.-P. Novel Composite Powders with Uniform TiB2 Nano-Particle Distribution for 3D Printing. Appl. Sci. 2017, 7, 250.

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