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Nanomaterials 2019, 9(2), 235; https://doi.org/10.3390/nano9020235

Investigation of the Surface of Ga–Sn–Zn Eutectic Alloy by the Characterisation of Oxide Nanofilms Obtained by the Touch-Printing Method

1
Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Krakow 30-059, Poland
2
School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
*
Author to whom correspondence should be addressed.
Received: 31 December 2018 / Revised: 4 February 2019 / Accepted: 6 February 2019 / Published: 9 February 2019
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Abstract

Ga–Sn–Zn eutectic alloy is a non-toxic liquid metal alloy which could be used in a multitude of applications, including as a heat transfer agent, in gas sensing, and in medicine. Alloys containing gallium readily oxidise in air, forming a thin oxide layer that influences the properties of liquid metals and which has not been studied. In this study, the oxide layer formed on Ga–Sn–Zn alloy was transferred at room temperature onto three substrates—quartz, glass and silicon. The contact angle between the liquid alloy and different substrates was determined. The obtained thin oxide films were characterised using atomic force microscopy, X-ray photon spectroscopy, and optical and transmission electron microscopy. The contact angle does not influence the deposition of the layers. It was determined that it is possible to obtain nanometric oxide layers of a few micrometres in size. The chemical composition was determined by XPS and EDS independently, and showed that the oxide layer contains about 90 atom % of gallium with some additions of tin and zinc. The oxides obtained from the eutectic Ga–Sn–Zn liquid alloys appear to be nanocrystalline. View Full-Text
Keywords: liquid alloys; 2D materials; thin films; Ga–Sn–Zn alloys; gallium alloys; nanoanalysis liquid alloys; 2D materials; thin films; Ga–Sn–Zn alloys; gallium alloys; nanoanalysis
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Dobosz, A.; Daeneke, T.; Zavabeti, A.; Zhang, B.Y.; Orrell-Trigg, R.; Kalantar-Zadeh, K.; Wójcik, A.; Maziarz, W.; Gancarz, T. Investigation of the Surface of Ga–Sn–Zn Eutectic Alloy by the Characterisation of Oxide Nanofilms Obtained by the Touch-Printing Method. Nanomaterials 2019, 9, 235.

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