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ORIGINAL RESEARCH article

Front. Mech. Eng.
Sec. Tribology
Volume 10 - 2024 | doi: 10.3389/fmech.2024.1504347
This article is part of the Research Topic Visualization Techniques in Tribology View all 15 articles

Studies on Dielectric Spectroscopy of Oxidatively Degraded Poly(αolefin)

Provisionally accepted
Shunsuke Iwase Shunsuke Iwase 1*Taisuke Maruyama Taisuke Maruyama 1Satoshi Momozono Satoshi Momozono 2Satoru Maegawa Satoru Maegawa 3Fumihiro Itoigawa Fumihiro Itoigawa 3
  • 1 Core Technology R&D Center, NSK Ltd., Fujisawa, Japan
  • 2 NSK Tribology Collaborative Research Cluster, Tokyo Institute of Technology, Yokohama, Japan
  • 3 Nagoya Institute of Technology, Nagoya, Aichi, Japan

The final, formatted version of the article will be published soon.

    Failures in tribological components such as bearings can significantly affect the performance and lifespan of machinery, necessitating the implementation of effective condition monitoring technologies. This study verified the feasibility of dielectric spectroscopy (DES) as a method for detecting abnormalities before damage occurs. A comparative evaluation was conducted between dielectric relaxation parameters and measurements from size exclusion chromatography, total acid number, and viscosity for oxidatively degraded poly(α-olefin) oils. The results confirmed that DES is an effective method for assessing the oxidative degradation state of lubricants. These findings suggest that DES could be applied to oil film condition monitoring and predictive maintenance.

    Keywords: Dielectric Spectroscopy, Lubricants, oil, degradation, Electrical impedance method, Condition monitoring, Oil diagnosis

    Received: 30 Sep 2024; Accepted: 07 Nov 2024.

    Copyright: © 2024 Iwase, Maruyama, Momozono, Maegawa and Itoigawa. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Shunsuke Iwase, Core Technology R&D Center, NSK Ltd., Fujisawa, Japan

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.