Tribology and Sustainability

Kumar, Homender; Haq, Mir Irfan Ul; Raina, Ankush; Jayalakshmi, S.; Singh, R. Arvind

doi:10.1201/9781003092162

Cited by 4 publications

(1 citation statement)

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“…The sustainability and reliability also play a very important role in the development of society through contributing to GDP of country (Katiyar and Rao, 2022; Katiyar et al , 2022). Therefore, the special issue – part-1 of Tribology for Sustainability & Reliability was published that was focused on methods to improve the tribological properties by improving the design, materials and theoretical analysis (Katiyar et al , 2021). To continue pervious part-1, the special issue – part-2 publishes remainder of the salient contributions from researchers worldwide, including those who presented their ideas in the International Tribology Research Symposium (ITRS 2020) held in virtual mode during November 5–7 in 2020.…”

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confidence: 99%

Guest editorial: Tribology for sustainability & reliability

Katiyar

Rao

Haq

et al. 2022

ILT

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mentioning

confidence: 99%

Guest editorial: Tribology for sustainability & reliability

Katiyar

Rao

Haq

et al. 2022

ILT

Self Cite

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Tribological evaluation of PAO 100 oil‐based lithium greases with chemically functionalized nanoadditives

Kumar

Harsha

Rawat

2023

Lubrication Science

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The lubricating greases employed in this study were formulated with polyalphaolefin (PAO) 100 as the base oil and 12‐lithium hydroxystearate as the thickener. The sol–gel method was used to produce the LaF3 nanoadditives. The oleic acid‐treated LaF3 (i.e., OA‐LaF3) and carboxylic acid‐treated MWCNTs (i.e., COOH‐MWCNTs) were blended in the formulated grease samples and used as nanoadditives. The detailed microstructural and chemical properties of chemically treated nanoadditives were investigated using HR‐TEM, XRD, FTIR and XPS analyses. Using a four‐ball tester, the effect of different concentrations of nanoadditives on the tribo‐performance of greases was investigated. Tribo‐test results revealed the role of nanoadditives in PAO‐based grease lubrication performance. COOH‐MWCNTs and OA‐LaF3 nanoadditives outperformed PAO grease in terms of physicochemical and tribo‐performance for steel‐steel tribo‐pair. The improved tribo‐performance is attributed to the formation of tribo‐film on the contact interfaces via nanoadditives. The development of tribo‐film was confirmed by XPS analysis of worn surfaces.

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