Nanoenhanced biolubricant for improving lubrication in roller bearing steel-steel contact surfaces - a comparative tribological study

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials Pub Date : 2025-02-28 DOI:10.1016/j.diamond.2025.112160

Santhosh Kumar Kamarapu , M. Amarnath , Saurabh Tiwari

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Abstract

The performance of roller bearings is often compromised by the excessive temperature rise and wear, which encourages the author to search for a more effective lubrication solution. This study examines the heat transfer capability of a bio-based nanolubricant blend to improve heat transfer and reduce wear in roller-bearing fatigue load conditions. In this study, Elaeis guineensis and mineral oil blend used in addition to functionalized multiwall carbon nanotubes. The lubricant's thermo-rheological results were evaluated over 1000 h of operation using NJ307 cylindrical roller bearings. The study quantified the lubricants rheological behaviour, film thickness, classification of wear debris, and changes in temperature with the proposed nanolubricant blend and compared the results with commercial grade lubricant. The findings indicated that the nanolubricant attained a temperature reduction of up to 37 % compared to traditional mineral oil. A significant surface wear reduction observed in nanolubricated bearing due to stable enhanced nanolubrication film developed between steel-steel contact surfaces. This experimental study provides substantial insights into nanomaterial-enhanced bio-lubricants, which demonstrate improved sustainability and performance in industrial bearing systems, hence promoting their potential commercial application.

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来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.