Wear Behavior of Commercial Copper-Based Aircraft Brake Pads Fabricated under Different SPS Conditions

Understanding the wear behavior of Cu-based brake pads, which are used in high-speed railway trains and aircraft, is essential for improving their design and safety. Therefore, the wear mechanism of these pads has been studied extensively. However, most studies have focused on the changes in their c...

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Autores principales:	Kyung Il Kim, Hyunjong Lee, Jongbeom Kim, Kyu Hwan Oh, Kyung Taek Kim
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	copper-based brake pad ball-on-disc test tribological properties wear mechanism scanning electron microscopy transmission electron microscopy Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/f44176b152b54a69a9e388ca431f9b06
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id	oai:doaj.org-article:f44176b152b54a69a9e388ca431f9b06
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spelling	oai:doaj.org-article:f44176b152b54a69a9e388ca431f9b062021-11-25T17:17:52ZWear Behavior of Commercial Copper-Based Aircraft Brake Pads Fabricated under Different SPS Conditions10.3390/cryst111112982073-4352https://doaj.org/article/f44176b152b54a69a9e388ca431f9b062021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1298https://doaj.org/toc/2073-4352Understanding the wear behavior of Cu-based brake pads, which are used in high-speed railway trains and aircraft, is essential for improving their design and safety. Therefore, the wear mechanism of these pads has been studied extensively. However, most studies have focused on the changes in their composition and not the effects of their manufacturing conditions. In this study, we fabricated commercial Cu-based brake pads containing Fe, graphite, Al<sub>2</sub>O<sub>3</sub>, and SiO<sub>2</sub> using spark plasma sintering under different conditions. The microstructures and mechanical properties of the pads were investigated. The pads were tribo-evaluated using the ball-on-disc test under various load conditions. Their worn surfaces were analyzed using X-ray diffraction analysis, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and confocal microscopy in order to elucidate their wear mechanism. In addition, the dynamometer test was performed to confirm whether their wear behavior would be similar under actual conditions. Finally, a comparative analysis was performed using the ball-on-disc test. The results indicated that the brake pads with the same composition but fabricated under different sintering conditions exhibited different wear characteristics. We believe that this research is of great significance for understanding the wear mechanism of Cu-based brake pads and improving their design and hence their performance.Kyung Il KimHyunjong LeeJongbeom KimKyu Hwan OhKyung Taek KimMDPI AGarticlecopper-based brake padball-on-disc testtribological propertieswear mechanismscanning electron microscopytransmission electron microscopyCrystallographyQD901-999ENCrystals, Vol 11, Iss 1298, p 1298 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	copper-based brake pad ball-on-disc test tribological properties wear mechanism scanning electron microscopy transmission electron microscopy Crystallography QD901-999
spellingShingle	copper-based brake pad ball-on-disc test tribological properties wear mechanism scanning electron microscopy transmission electron microscopy Crystallography QD901-999 Kyung Il Kim Hyunjong Lee Jongbeom Kim Kyu Hwan Oh Kyung Taek Kim Wear Behavior of Commercial Copper-Based Aircraft Brake Pads Fabricated under Different SPS Conditions
description	Understanding the wear behavior of Cu-based brake pads, which are used in high-speed railway trains and aircraft, is essential for improving their design and safety. Therefore, the wear mechanism of these pads has been studied extensively. However, most studies have focused on the changes in their composition and not the effects of their manufacturing conditions. In this study, we fabricated commercial Cu-based brake pads containing Fe, graphite, Al<sub>2</sub>O<sub>3</sub>, and SiO<sub>2</sub> using spark plasma sintering under different conditions. The microstructures and mechanical properties of the pads were investigated. The pads were tribo-evaluated using the ball-on-disc test under various load conditions. Their worn surfaces were analyzed using X-ray diffraction analysis, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and confocal microscopy in order to elucidate their wear mechanism. In addition, the dynamometer test was performed to confirm whether their wear behavior would be similar under actual conditions. Finally, a comparative analysis was performed using the ball-on-disc test. The results indicated that the brake pads with the same composition but fabricated under different sintering conditions exhibited different wear characteristics. We believe that this research is of great significance for understanding the wear mechanism of Cu-based brake pads and improving their design and hence their performance.
format	article
author	Kyung Il Kim Hyunjong Lee Jongbeom Kim Kyu Hwan Oh Kyung Taek Kim
author_facet	Kyung Il Kim Hyunjong Lee Jongbeom Kim Kyu Hwan Oh Kyung Taek Kim
author_sort	Kyung Il Kim
title	Wear Behavior of Commercial Copper-Based Aircraft Brake Pads Fabricated under Different SPS Conditions
title_short	Wear Behavior of Commercial Copper-Based Aircraft Brake Pads Fabricated under Different SPS Conditions
title_full	Wear Behavior of Commercial Copper-Based Aircraft Brake Pads Fabricated under Different SPS Conditions
title_fullStr	Wear Behavior of Commercial Copper-Based Aircraft Brake Pads Fabricated under Different SPS Conditions
title_full_unstemmed	Wear Behavior of Commercial Copper-Based Aircraft Brake Pads Fabricated under Different SPS Conditions
title_sort	wear behavior of commercial copper-based aircraft brake pads fabricated under different sps conditions
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f44176b152b54a69a9e388ca431f9b06
work_keys_str_mv	AT kyungilkim wearbehaviorofcommercialcopperbasedaircraftbrakepadsfabricatedunderdifferentspsconditions AT hyunjonglee wearbehaviorofcommercialcopperbasedaircraftbrakepadsfabricatedunderdifferentspsconditions AT jongbeomkim wearbehaviorofcommercialcopperbasedaircraftbrakepadsfabricatedunderdifferentspsconditions AT kyuhwanoh wearbehaviorofcommercialcopperbasedaircraftbrakepadsfabricatedunderdifferentspsconditions AT kyungtaekkim wearbehaviorofcommercialcopperbasedaircraftbrakepadsfabricatedunderdifferentspsconditions
_version_	1718412568129699840

Wear Behavior of Commercial Copper-Based Aircraft Brake Pads Fabricated under Different SPS Conditions

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