Exploring the tribological impact of micaceous additives in copper-free automobile brake friction composites

IF 3.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2024-07-17 DOI:10.1002/vnl.22142

G. Sathyamoorthy, Vijay Raghunathan, Sanjay Mavinkere Rangappa, Suchart Siengchin, D. Lenin Singaravelu

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Abstract

This study investigates the tribological impact of incorporating micaceous additives in copper-free brake friction composites for automotive applications. Four brake pad formulations were created, each containing different amounts of muscovite and phlogopite, ranging from 0% to 10% by weight. A brake pad comparison was conducted by replacing mica with synthetic barites. The physical, thermal, mechanical, and chemical properties of the fabricated brake friction composite were examined. Tribological features were evaluated through inertia brake dynamometer testing following the JASO-C-406 schedule. Scanning electron microscope (SEM) analysis delved into contact plateau formations and back transfer patches on the brake pad's surfaces. Notably, phlogopite-based pads exhibited enhanced thermal stability and efficient heat dissipation, contributing to sustained tribological performance. Overall, the comprehensive evaluation using the multiple objective optimization by ratio analysis (MOORA) method positioned phlogopite-based brake pads as the optimal choice for optimized braking performances.

Highlights

Exploration of micaceous additives as an ingredient in brake friction composite.
Phlogopite-based brake pads showed better fade and recovery performance.
Phlogopite-based brake pads exhibited low pad wear and rotor wear.
MOORA optimization positioned phlogopite-based brake pads as the optimal choice.

Abstract Image

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探索无铜汽车制动摩擦复合材料中微粒添加剂对摩擦学的影响

本研究探讨了在汽车用无铜制动摩擦复合材料中加入微粒添加剂对摩擦学的影响。研究人员制作了四种刹车片配方，每种配方都含有不同量的云母和辉绿岩，按重量计从 0% 到 10% 不等。通过用合成重晶石替代云母，对刹车片进行了比较。对制备的制动摩擦复合材料的物理、热、机械和化学特性进行了检验。按照 JASO-C-406 标准，通过惯性制动测功机测试对摩擦学特性进行了评估。扫描电子显微镜（SEM）分析深入研究了刹车片表面的接触高原形态和背面转移斑块。值得注意的是，基于磷灰石的刹车片表现出更高的热稳定性和散热效率，有助于保持摩擦学性能。总之，使用多目标优化比分析（MOORA）方法进行的综合评估将辉绿岩基刹车片定位为优化制动性能的最佳选择。基于辉绿岩的刹车片显示出更好的衰减和恢复性能。辉绿岩制动片的刹车片磨损和转子磨损较低。通过 MOORA 优化，辉绿岩制动片成为最佳选择。

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来源期刊

Journal of Vinyl & Additive Technology 工程技术-材料科学：纺织

CiteScore

5.40

自引率

14.80%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.