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Studies on the Aging Characteristics of Base Oil with Amine Based Antioxidant in Steel-on-Steel Lubricated Sliding

Singh, Archana and Gandra, Ravi T and Schneider, Eric W and Biswas, Sanjay K (2013) Studies on the Aging Characteristics of Base Oil with Amine Based Antioxidant in Steel-on-Steel Lubricated Sliding. In: JOURNAL OF PHYSICAL CHEMISTRY C, 117 (4). pp. 1735-1747.

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Official URL: http://dx.doi.org/10.1021/jp309824r

Abstract

An industrial base oil, a blend of different paraffin fractions, is heated to 130 degrees C (1) in the ambient and (2) for use as a lubricant in a steel pin on a steel disk sliding experiment. The base oil was tested with and without test antioxidants: dimethyl disulfide (DMDS) and alkylated diphenylamine (ADPA). Primary and secondary oxidation products were monitored continuously by FTIR over a 100 h period. In addition, friction and wear of the steel pin were monitored over the same period and the chemical transformation of the pin surface was monitored by XPS. The objective of this work is to observe the catalytic action of the steel components on the oil aging process and the efficacy of the antioxidant to reduce oxidation of oil used in tribology as a lubricant. Possible mechanistic explanations of the aging process as well as its impact on friction and wear are discussed.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to AMER CHEMICAL SOC, WASHINGTON
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Depositing User: Francis Jayakanth
Date Deposited: 11 Mar 2013 11:33
Last Modified: 11 Mar 2013 11:33
URI: http://eprints.iisc.ac.in/id/eprint/45999

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