Thermal behaviour of brake pad light rail transit / Mohd Zaki Bahrom

Material specification and operating temperature are very important for product performance especially for tran sportation application such as brake pad material. For light rail brake pad, other than strength, wear and friction , thermal stability is also an important property to investigate due to...

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Main Author:	Bahrom, Mohd Zaki
Format:	Thesis
Language:	English
Published:	2009
Subjects:	Analytical chemistry Mechanics applied to machinery. Dynamics Mechanical movements
Online Access:	http://ir.uitm.edu.my/id/eprint/27419/ http://ir.uitm.edu.my/id/eprint/27419/1/TM_MOHD%20ZAKI%20BAHROM%20EM%2009_5.pdf

id	uitm-27419
recordtype	eprints
spelling	uitm-274192020-01-20T02:58:53Z http://ir.uitm.edu.my/id/eprint/27419/ Thermal behaviour of brake pad light rail transit / Mohd Zaki Bahrom Bahrom, Mohd Zaki Analytical chemistry Mechanics applied to machinery. Dynamics Mechanical movements Material specification and operating temperature are very important for product performance especially for tran sportation application such as brake pad material. For light rail brake pad, other than strength, wear and friction , thermal stability is also an important property to investigate due to temperature variation during operation. Hence, four sample differences of laboratory formulation are used to study the therm al stability of brak e pad material. The thermal behaviour is determined by therm al gravimetric and differential thermal analyser which are heated up to 1000°C were used in combination with evolve gas analysi s. Scanning electron microscope equipped with energ y disper sive x-ray and quantitative x-ray flore scenc e techniques are used to determine the element present in formulated brake pad samples. Friction and wea r test was conducted to determine the thickne ss losses. A brake pad is basicall y a mixture of iron (Fe), carbon (C), fibre , lubricant material and binder system. The materials distributed in samples were found to be nonhomogeneou s. On EDAX surface mapping, iron elements in higher contents were present compared to carbon and other materials. The selected raw material are analysed to have record data on its composition and characteristic especially thermal prop ertie s, maximum decomposition temperatures (Tmax dec) were evaluated from DTG (Differential Thermal Gravimetric) curve and analysed as to whether there is any decomposed by products formed . The formulations of brake pads material s weight loss are around 5% to 10%. The friction and wear test result s showed different value of friction coefficient (u) in the range 0.2 to 0.5. The lowest thickness loss is around 1.44 % and the highest thickness loss is around 5 %. Higher thickne ss loss means shorter brake pad life and thus , incurred more material and maintenance cost. 2009 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/27419/1/TM_MOHD%20ZAKI%20BAHROM%20EM%2009_5.pdf Bahrom, Mohd Zaki (2009) Thermal behaviour of brake pad light rail transit / Mohd Zaki Bahrom. Masters thesis, Universiti Teknologi MARA.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Analytical chemistry Mechanics applied to machinery. Dynamics Mechanical movements
spellingShingle	Analytical chemistry Mechanics applied to machinery. Dynamics Mechanical movements Bahrom, Mohd Zaki Thermal behaviour of brake pad light rail transit / Mohd Zaki Bahrom
description	Material specification and operating temperature are very important for product performance especially for tran sportation application such as brake pad material. For light rail brake pad, other than strength, wear and friction , thermal stability is also an important property to investigate due to temperature variation during operation. Hence, four sample differences of laboratory formulation are used to study the therm al stability of brak e pad material. The thermal behaviour is determined by therm al gravimetric and differential thermal analyser which are heated up to 1000°C were used in combination with evolve gas analysi s. Scanning electron microscope equipped with energ y disper sive x-ray and quantitative x-ray flore scenc e techniques are used to determine the element present in formulated brake pad samples. Friction and wea r test was conducted to determine the thickne ss losses. A brake pad is basicall y a mixture of iron (Fe), carbon (C), fibre , lubricant material and binder system. The materials distributed in samples were found to be nonhomogeneou s. On EDAX surface mapping, iron elements in higher contents were present compared to carbon and other materials. The selected raw material are analysed to have record data on its composition and characteristic especially thermal prop ertie s, maximum decomposition temperatures (Tmax dec) were evaluated from DTG (Differential Thermal Gravimetric) curve and analysed as to whether there is any decomposed by products formed . The formulations of brake pads material s weight loss are around 5% to 10%. The friction and wear test result s showed different value of friction coefficient (u) in the range 0.2 to 0.5. The lowest thickness loss is around 1.44 % and the highest thickness loss is around 5 %. Higher thickne ss loss means shorter brake pad life and thus , incurred more material and maintenance cost.
format	Thesis
author	Bahrom, Mohd Zaki
author_facet	Bahrom, Mohd Zaki
author_sort	Bahrom, Mohd Zaki
title	Thermal behaviour of brake pad light rail transit / Mohd Zaki Bahrom
title_short	Thermal behaviour of brake pad light rail transit / Mohd Zaki Bahrom
title_full	Thermal behaviour of brake pad light rail transit / Mohd Zaki Bahrom
title_fullStr	Thermal behaviour of brake pad light rail transit / Mohd Zaki Bahrom
title_full_unstemmed	Thermal behaviour of brake pad light rail transit / Mohd Zaki Bahrom
title_sort	thermal behaviour of brake pad light rail transit / mohd zaki bahrom
publishDate	2009
url	http://ir.uitm.edu.my/id/eprint/27419/ http://ir.uitm.edu.my/id/eprint/27419/1/TM_MOHD%20ZAKI%20BAHROM%20EM%2009_5.pdf
first_indexed	2023-09-18T23:18:25Z
last_indexed	2023-09-18T23:18:25Z
_version_	1777419268287102976

Thermal behaviour of brake pad light rail transit / Mohd Zaki Bahrom

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