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Use of nanocarbon obtained from secondary raw material for modification of composition coatings
Date Issued
2018
Author(s)
Ananiashvili, N.
Metreveli, J.
Gachechiladze, M.
Tskhakaia, E.
Giorgadze, N.
Publisher
Abstract
Creation of nanostructured modified metal coatings with a multifunctional purpose, having unique thermal, electrical properties, physical and chemical stability is possible by use nanomaterials, because of their specific surface, high porosity and subminiature structure. The achievement of such properties for conventional coarse-grained coatings is impossible. A group of authors of this work obtained high-quality carbon nanomaterial by thermochemical method of processing worn tyres (United States Patent and Trademark Office, patent no. 9663662) The financing was provided by the private technology company “Long Arc Technologies Corporation”.
New carbonic nanomaterials will be created from different secondary raw material (sawdust, agricultural waste, etc.) by use of acquired experience and knowledge. Nanomaterials obtained from this secondary raw material were tested in galvanic composition coatings. For the purpose of uniform distribution in nickeling electrolyte, the carbonic nanomaterial, in accordance with selected conditions, was dispersed on the ultrasonic disperser. In the obtained solution, the electrolysis was carried out at high temperature (600 C), under the conditions of continuous stirring. Cathodic current output was 90 – 95 %. The structure and composition of composition coating was determined on SEM.
It turned out that some of the elements from carbonic nanomaterial had passed into the nickel composition coating. Experimental studies have shown that physical and mechanical properties have improved in comparison with traditional nickel coating – hardness and strength significantly increased, and sliding and friction coefficient decreased by 2.5 times.
New carbonic nanomaterials will be created from different secondary raw material (sawdust, agricultural waste, etc.) by use of acquired experience and knowledge. Nanomaterials obtained from this secondary raw material were tested in galvanic composition coatings. For the purpose of uniform distribution in nickeling electrolyte, the carbonic nanomaterial, in accordance with selected conditions, was dispersed on the ultrasonic disperser. In the obtained solution, the electrolysis was carried out at high temperature (600 C), under the conditions of continuous stirring. Cathodic current output was 90 – 95 %. The structure and composition of composition coating was determined on SEM.
It turned out that some of the elements from carbonic nanomaterial had passed into the nickel composition coating. Experimental studies have shown that physical and mechanical properties have improved in comparison with traditional nickel coating – hardness and strength significantly increased, and sliding and friction coefficient decreased by 2.5 times.