Classification of coal deposited epoxy micro-nanocomposites by adopting machine learning techniques to LIBS analysis

• Published in: Journal of physics communications Vol. 5; no. 10; pp. 105006 - 105015
• Main Authors: Jayaganthan, Sneha, Babu, Myneni Sukesh, Vasa, N J, Sarathi, R, Imai, Takahiro
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01-10-2021
• Subjects: Coal; epoxy resin; LIBS; Machine learning; nano composites; Nanocomposites
• ISSN: 2399-6528; 2399-6528
• DOI: 10.1088/2399-6528/ac2b5d

Abstract
Epoxy micro-nanocomposite specimens incorporated with 66 wt% of silica micro fillers and 0.7 wt% of ion trapping particles as nano fillers, are coated with four different variants of coal. The conductivity of the coal deposited samples is observed to be in direct correlation with the percentage carbon content present in the coal samples. The epoxy micro-nanocomposite specimens coated with different variants of coals were successfully classified by using Laser induced breakdown spectroscopy (LIBS) assisted by various machine learning techniques. It is noticed that the classification through Logistic regression method (LRM) has reflected a higher training as well as testing accuracy of 100% and 98%, respectively when compared to other machine learning methods.