Purpose
The purpose of this paper is to study the potential of alumina (Al2O3) in nanometer size in automotive brake friction materials.
Design/methodology/approach
Four brake linings containing alumina differing in particle size (355 µm and 80 nm) and various amount (5 and 10 Wt.%) were designed and produced. The hardness, density and porosity of the samples were measured. All samples were tested on a full-scale brake dynamometer with gray cast iron disc to determine the tribological properties. Detailed examinations on the worn surface were analyzed using a scanning electron microscopy.
Findings
It was concluded that all performance parameters were beneficially affected because of nano alumina.
Originality/value
This paper emphasizes the importance of nano-composites in the automotive industry and helps industrial firms and academicians working on wear of materials.
Purpose
The purpose of this study is to investigate the potential of fly ash in automotive brake lining materials.
Design/methodology/approach
Three brake linings containing fly ash (36, 41 and 46 Wt.%) were designed and produced by dry-mixing, pre-forming and hot pressing. The surface hardness of all brake lining samples was measured by using Brinell hardness tester. The density of the specimens was determined based on Archimedean principle in water. The friction and wear characteristics of the brake lining samples were determined using a real brake disc-type tester. Detailed examinations on the worn surface were analyzed using a scanning electron microscopy.
Findings
Fly ash can be good alternative as space filler to reduce the cost for brake lining.
Originality/value
The present study has successfully demonstrated that there is a high potential for commercial applications of brake linings including fly ash as a filler.
In this research work, palm seed power (0-9 wt%, step of 3%; four composites sample, namely P0, P3. P6, P9) were used to reinforce master batch of friction composite materials containing phenolic resin binder, steel swarf fibre, cashew, alumina, graphite, copper and zinc. The fabrications were as per standard industrial practice via hot compression moulding route. Thereafter, samples were cut and characterized for their tribological characteristics on specifically designed braking dynamometer using grey cast iron disc as per TS 555 and TS 9076 standards. Physical and mechanical properties such as hardness and density of the samples were also determined. Further, multi-criteria-decision-making like Preference Selection Index methods are used to ascertain ranking of material alternatives based on performance criteria. Both the subjective analysis and PSI output are in agreement with each other. Hence, such techniques often found suitable for decision-making or ranking of materials alternatives when performance criteria are of conflicting in nature.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.