Cu-Based MoS2-Dispersed Composite Material Formed by the Compression Shearing Method at Room Temperature

Cu/MoS2 composite material was formed by a novel powder-molding technique, which is termed the compression shearing method at room temperature (COSME-RT). Cu/MoS2 sample mechanical and tribological properties and microstructures were investigated. Samples were prepared using five different MoS2 conc...

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Autores principales:	Sho Takeda, Hiroyuki Miki, Hiroyuku Takeishi, Toshiyuki Takagi
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2017
Materias:	copper molybdenum disulfide composite material powder molding friction and wear Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/474f76d1a10a4617ba73a1fb9023c129
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spelling	oai:doaj.org-article:474f76d1a10a4617ba73a1fb9023c1292021-11-05T09:20:33ZCu-Based MoS2-Dispersed Composite Material Formed by the Compression Shearing Method at Room Temperature1881-219810.2474/trol.12.29https://doaj.org/article/474f76d1a10a4617ba73a1fb9023c1292017-04-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/12/2/12_29/_pdf/-char/enhttps://doaj.org/toc/1881-2198Cu/MoS2 composite material was formed by a novel powder-molding technique, which is termed the compression shearing method at room temperature (COSME-RT). Cu/MoS2 sample mechanical and tribological properties and microstructures were investigated. Samples were prepared using five different MoS2 concentrations between 0 to 20 vol.%. No unwanted compounds were generated by the Cu and MoS2 because a high temperature is unnecessary in COSME-RT. Scanning electron microscopy observations confirmed that the MoS2 particles were dispersed homogeneously in the Cu host matrix. The indentation hardness of Cu/MoS2 with 0, 1.0 and 5.0 vol.% MoS2 was higher than 1.6 GPa, and is higher than that formed by conventional powder metallurgy methods and a pure Cu plate. The indentation hardness of the Cu/MoS2 decreased with increasing MoS2 concentration. In contrast, the lubricating performance of MoS2 became more pronounced at 5.0 vol.% or above. The coefficient of friction of Cu/MoS2 with 5.0, 10 and 20 vol.% MoS2 was ~0.20, and is the same as for MoS2 in air. The sample coefficient of friction was maintained because of lubrication by forming a transferred film of wear debris that contained MoS2. Cu/MoS2 had a low coefficient of friction, but maintained its material strength at 5.0 vol.% MoS2.Sho TakedaHiroyuki MikiHiroyuku TakeishiToshiyuki TakagiJapanese Society of Tribologistsarticlecoppermolybdenum disulfidecomposite materialpowder moldingfriction and wearPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 12, Iss 2, Pp 29-36 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	copper molybdenum disulfide composite material powder molding friction and wear Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	copper molybdenum disulfide composite material powder molding friction and wear Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Sho Takeda Hiroyuki Miki Hiroyuku Takeishi Toshiyuki Takagi Cu-Based MoS2-Dispersed Composite Material Formed by the Compression Shearing Method at Room Temperature
description	Cu/MoS2 composite material was formed by a novel powder-molding technique, which is termed the compression shearing method at room temperature (COSME-RT). Cu/MoS2 sample mechanical and tribological properties and microstructures were investigated. Samples were prepared using five different MoS2 concentrations between 0 to 20 vol.%. No unwanted compounds were generated by the Cu and MoS2 because a high temperature is unnecessary in COSME-RT. Scanning electron microscopy observations confirmed that the MoS2 particles were dispersed homogeneously in the Cu host matrix. The indentation hardness of Cu/MoS2 with 0, 1.0 and 5.0 vol.% MoS2 was higher than 1.6 GPa, and is higher than that formed by conventional powder metallurgy methods and a pure Cu plate. The indentation hardness of the Cu/MoS2 decreased with increasing MoS2 concentration. In contrast, the lubricating performance of MoS2 became more pronounced at 5.0 vol.% or above. The coefficient of friction of Cu/MoS2 with 5.0, 10 and 20 vol.% MoS2 was ~0.20, and is the same as for MoS2 in air. The sample coefficient of friction was maintained because of lubrication by forming a transferred film of wear debris that contained MoS2. Cu/MoS2 had a low coefficient of friction, but maintained its material strength at 5.0 vol.% MoS2.
format	article
author	Sho Takeda Hiroyuki Miki Hiroyuku Takeishi Toshiyuki Takagi
author_facet	Sho Takeda Hiroyuki Miki Hiroyuku Takeishi Toshiyuki Takagi
author_sort	Sho Takeda
title	Cu-Based MoS2-Dispersed Composite Material Formed by the Compression Shearing Method at Room Temperature
title_short	Cu-Based MoS2-Dispersed Composite Material Formed by the Compression Shearing Method at Room Temperature
title_full	Cu-Based MoS2-Dispersed Composite Material Formed by the Compression Shearing Method at Room Temperature
title_fullStr	Cu-Based MoS2-Dispersed Composite Material Formed by the Compression Shearing Method at Room Temperature
title_full_unstemmed	Cu-Based MoS2-Dispersed Composite Material Formed by the Compression Shearing Method at Room Temperature
title_sort	cu-based mos2-dispersed composite material formed by the compression shearing method at room temperature
publisher	Japanese Society of Tribologists
publishDate	2017
url	https://doaj.org/article/474f76d1a10a4617ba73a1fb9023c129
work_keys_str_mv	AT shotakeda cubasedmos2dispersedcompositematerialformedbythecompressionshearingmethodatroomtemperature AT hiroyukimiki cubasedmos2dispersedcompositematerialformedbythecompressionshearingmethodatroomtemperature AT hiroyukutakeishi cubasedmos2dispersedcompositematerialformedbythecompressionshearingmethodatroomtemperature AT toshiyukitakagi cubasedmos2dispersedcompositematerialformedbythecompressionshearingmethodatroomtemperature
_version_	1718444406082633728

Cu-Based MoS2-Dispersed Composite Material Formed by the Compression Shearing Method at Room Temperature

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