Effect of phosphide additives on the tribological properties of polyethylsiloxane (PES) in Si3N4 and M50 system

IF 1.5 4区工程技术 Q3 ENGINEERING, MECHANICAL Industrial Lubrication and Tribology Pub Date : 2024-08-28 DOI:10.1108/ilt-04-2024-0139

Luo Yue, Yan Meng, Eunji Lee, Pengpeng Bai, Yingzhuo Pan, Peng Wei, Jie Cheng, Yonggang Meng, Yu Tian

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Abstract

Purpose

The incorporation of phosphide additives is regarded as a highly effective strategy for enhancing the lubricative qualities of base oils. This study aims to assess the lubrication behavior and efficacy of various phosphide additives in polyethylsiloxane (PES) through the employment of the Schwingum Reibung Verschleiss test methodology, across a temperature range from ambient to 300°C.

Design/methodology/approach

PES demonstrated commendable lubrication capabilities within the Si3N4/M50 system, primarily attributable to the Si-O frictional reaction film at the interface. This film undergoes disintegration as the temperature escalates, leading to heightened wear. Moreover, the phosphide additives were found to ameliorate the issues encountered by PES in the Si3N4/M50 system, characterized by numerous boundary lubrication failure instances. A chemical film comprising P-Fe-O was observed to form at the interface; however, at elevated temperatures, disintegration of some phosphide films precipitated lubrication failures, as evidenced by a precipitous rise in the coefficient of friction.

Findings

The results show that a phosphide reactive film can be formed and a reduction in wear rate is achieved, which is reduced by 64.7% from 2.98 (for pure PES at 300°C) to 1.05 × 10^–9 μm³/N m (for triphenyl phosphite at 300°C).

Originality/value

The data derived from this investigation offer critical insights for the selection and deployment of phosphide additives within high-temperature lubrication environments pertinent to PES.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-04-2024-0139/

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磷化添加剂对 Si3N4 和 M50 体系中聚乙稀硅氧烷（PES）摩擦学特性的影响

目的加入磷化添加剂被认为是提高基础油润滑性能的一种非常有效的策略。本研究旨在采用 Schwingum Reibung Verschleiss 测试方法，在环境温度到 300°C 的温度范围内评估聚乙基硅氧烷（PES）中各种磷化添加剂的润滑行为和功效。这层膜会随着温度的升高而瓦解，从而导致磨损加剧。此外，磷化添加剂还能改善 PES 在 Si3N4/M50 系统中遇到的问题，其特点是边界润滑失效的情况很多。观察到在界面上形成了由 P-Fe-O 组成的化学薄膜；然而，在温度升高时，一些磷化膜的分解导致润滑失效，摩擦系数急剧上升就是证明。原创性/价值这项研究得出的数据为在与聚醚砜相关的高温润滑环境中选择和使用磷化添加剂提供了重要的启示。同行评审本文的同行评审历史见：https://publons.com/publon/10.1108/ILT-04-2024-0139/。

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来源期刊

Industrial Lubrication and Tribology 工程技术-工程：机械

CiteScore

3.00

自引率

18.80%

发文量

129

审稿时长

1.9 months

期刊介绍： Industrial Lubrication and Tribology provides a broad coverage of the materials and techniques employed in tribology. It contains a firm technical news element which brings together and promotes best practice in the three disciplines of tribology, which comprise lubrication, wear and friction. ILT also follows the progress of research into advanced lubricants, bearings, seals, gears and related machinery parts, as well as materials selection. A double-blind peer review process involving the editor and other subject experts ensures the content''s validity and relevance.