Nb-doped hydrogenated diamond-like carbon coated biodiesel injectors material: Synthesis, structure and properties

Efeoglu, Ihsan and Maleque, Md. Abdul and Gulten, Gokhan and Yesilyurt, Mustafa and Yaylali, Banu and Totik, Yasar and Kalam, Md Abul and Haji Hassan, Masjuki and Zulkifli, Nurin Wahidah (2024) Nb-doped hydrogenated diamond-like carbon coated biodiesel injectors material: Synthesis, structure and properties. Diamond and Related Materials, 149. pp. 1-10. ISSN 0925-9635

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Abstract

Despite the economic and environmental benefits of biodiesel, it poses significant challenges, including coking on metal surface and increased wear on diesel engine injector nozzles. Therefore, this study investigates the synthesis of niobium-doped diamond-like carbon (Nb-DLC) coatings on two types of injector nozzle materials (viz. H13 steel, AISI 420 stainless steel) using the Closed-Field Unbalanced Magnetron Sputtering (CFUBMS) technique. Comprehensive characterizations, including microstructural analysis, crystal structure evaluation, hardness assessment, and tribological property assessment, were conducted. The Nb-DLC coatings demonstrated a stable friction coefficient, with values four times lower than that of the substrate materials. The present findings demonstrate significant enhancements in terms of structural composition, crystalline phase, hardness, friction coefficients, and adhesion properties due to the Nb-DLC coatings. Therefore, Nb-DLC coated materials could be the promising candidate material for biodiesel engine injector nozzle applications. This emphasizes their potential to contribute significantly to the sustainable consolidation of biodiesel within automotive engine.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Biodiesel engine injector materials Nb-DLC coating Closed field unbalanced magnetron sputtering Structure And property
Subjects:	T Technology > T Technology (General) > T173.2 Technological change T Technology > TA Engineering (General). Civil engineering (General) > TA2001 Plasma engineering. Applied plasma dynamics T Technology > TN Mining engineering. Metallurgy > TN600 Metallurgy
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Prof Dr. Md Abdul Maleque
Date Deposited:	08 Oct 2024 08:52
Last Modified:	08 Oct 2024 09:19
URI:	http://irep.iium.edu.my/id/eprint/114888

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