Combination of pulsed laser ablation and inert gas condensation for the synthesis of nanostructured nanocrystalline, amorphous and composite materials. Issue 11 (25th October 2019)

• Record Type: Journal Article
• Authors: Bag, Soumabha; Baksi, Ananya; Wang, Di; Kruk, Robert; Benel, Cahit; Chellali, Mohammed Reda; Hahn, Horst
• Is Part Of: Nanoscale advances. Volume 1:Issue 11(2019)
• Page Start: 4513
• Page End: 4521
• Publication Date: 2019-10-25
• Subjects: 620.5
• DOI: 10.1039/c9na00533a
• Languages: English
• ISSNs: 2516-0230

Abstract

Abstract : A new PL-IGC system for the synthesis and property tuning of amorphous and crystalline nanostructured materials. Abstract : A new instrument combining pulsed laser ablation and inert gas condensation for the production of nanopowders is presented. It is shown that various nanostructured materials, such as regular metallic, semiconducting, insulating materials, complex high entropy alloys, amorphous alloys, composites and oxides can be synthesized. The unique variability of the experimental set-up is possible due to the reproducible control of laser power (pulse energy and repetition rate), laser ablation pattern on the target, and experimental conditions during the inert gas condensation, all of which can be controlled and optimized independently. Microstructure analysis of the as-prepared composite and amorphous Ni60 Nb40 nanopowders establishes the instrument's ability for the synthesis of materials with unique compositions and atomic structure. It is further shown that small variations of the synthesis parameters can influence materials properties of the final product, in terms of particle size, composition and properties. As an example, the laser power has been used to control the magnetic properties of amorphous Ni60 Nb40 nanopowders. A few selected examples of the manifold possibilities of the new synthesis apparatus are presented in this report together with detailed structural characterization of the produced nanopowders.