Opportunities and challenges for Radio frequency plasma spheroidized nanocrystalline powders in additive manufacturing. (2020)

• Record Type: Journal Article
• Authors: Sreenivasan, M.; Krishna, Ram; Skulskyi, M.; Lyutyk, M.
• Is Part Of: Materials today. Volume 33:Part 1(2020)
• Page Start: 1021
• Page End: 1025
• Publication Date: 2020
• Subjects: Radio frequency plasma spheroidization -- Nanocrystalline powders -- Morphology -- Particle size distribution -- Additive manufacturing -- Spherical particles; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.07.050
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: This paper overviews the emerging state-of-the-art technology to produce high-purity nanocrystalline powders on a commercial scale. The focus is on synthesizing and utilizing nanocrystalline powders for the core additive manufacturing processes and addressing the current challenges and opportunities in 3D printing applications. Radio frequency plasma spheroidization is a versatile technique, utilizing plasma science to synthesize, purify, spheroidize and densify a range of materials. The suitability of nanocrystalline powders for use in tool-less additive manufacturing has been reviewed for morphology, composition and purity. Important technological parameters, energy usage, necessary human resources and eco-friendliness have been compared with the traditional techniques. The fundamental properties and characterization methodologies for nanocrystalline powders have been discussed based on the understanding of physics and chemistry of materials to provide structural, metallurgical, morphological and property-related information in correlation with the processes at atomic and molecular levels.