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http://dx.doi.org/10.3795/KSME-A.2013.37.5.625

Tribological Influence of Kinematic Oil Viscosity Impregnated in Nanopores of Anodic Aluminum Oxide Film  

Kim, Dae-Hyun (Graduate School of NID Fusion Technology, Seoul Nat'l Univ. of Science and Technology)
Ahn, Hyo-Sok (MSDE Program, College of Business and Technology, Seoul Nat'l Univ. of Science and Technology)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.5, 2013 , pp. 625-630 More about this Journal
Abstract
The friction behavior of a 60-${\mu}m$-thick anodic aluminum oxide (AAO) film having cylindrical nanopores of 45-nm diameter was investigated as a function of impregnated oil viscosity ranging from 3.4 to 392.6 cSt. Reciprocating ball-on-flat sliding friction tests using a 1-mm-diameter steel ball as the counterpart were carried out with normal load ranging from 0.1 to 1 N in an ambient environment. The friction coefficient significantly decreased with an increase in the oil viscosity. The boundary lubrication film remained effectively under all test conditions when high-viscosity oil was impregnated, whereas it was easily destroyed when low-viscosity oil was impregnated. Thin plastic deformed layer patches were formed on the worn surface with high-viscosity oil without evidence of tribochemical reaction and transfer of counterpart material.
Keywords
Impregnated Oil; Kinematic Viscosity; Nanopores; Boundary Lubrication; Anodic Aluminum Oxide Film; Friction and Wear;
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Times Cited By KSCI : 1  (Citation Analysis)
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