Tribological Properties of Copper Molybdate Powder Solid Lubricants under High Temperature Conditions

In our previous research, it was suggested that a sort of copper molybdate Cu3Mo2O9 generated on the friction track of aluminum bronze coated with MoO3 powder reduced friction under high temperature conditions. In order to study the lubricity of copper molybdate as high temperature lubricant, the lu...

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Autores principales: Yoshinori Takeichi, Masato Inada, Kentaro Minami, Masahiro Kawamura, Marian Dzimko
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Lenguaje:EN
Publicado: Japanese Society of Tribologists 2015
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spelling oai:doaj.org-article:84255563f8334817a88c3c80644b06a92021-11-05T09:22:37ZTribological Properties of Copper Molybdate Powder Solid Lubricants under High Temperature Conditions1881-219810.2474/trol.10.127https://doaj.org/article/84255563f8334817a88c3c80644b06a92015-04-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/10/2/10_127/_pdf/-char/enhttps://doaj.org/toc/1881-2198In our previous research, it was suggested that a sort of copper molybdate Cu3Mo2O9 generated on the friction track of aluminum bronze coated with MoO3 powder reduced friction under high temperature conditions. In order to study the lubricity of copper molybdate as high temperature lubricant, the lubrication properties of two kinds of copper molybdate powders, CuMoO4 and Cu3Mo2O9, were studied by comparing with the lubricity of CuO and MoO3 powders. These powders were supplied to the sliding surface of the stainless steel specimens as solid lubricant and the friction test was conducted at various ambient temperatures ranging from room temperature to 700°C. Cu3Mo2O9 and CuMoO4 powders were synthesized by heating the mixture of CuO and MoO3 powders in their own specific heating conditions and identified by XRD. Both of Cu3Mo2O9 and CuMoO4 powders showed lower friction coefficient and smaller wear amount of specimen with increasing ambient temperature. On the other hand, CuO and MoO3 powders showed poor lubricating ability and high wear amount of specimens comparing with two kinds of copper molybdate powders. It was suggested that the enhanced maintaining abilities of copper molybdate on the stainless steel substrate at high temperature and generation of unoxidized copper under high temperature conditions could enhance lubricating abilities.Yoshinori TakeichiMasato InadaKentaro MinamiMasahiro KawamuraMarian DzimkoJapanese Society of Tribologistsarticlehigh temperaturecopper molybdatesolid lubricantcu3mo2o9cumoo4copper oxidemolybdenum trioxideadhesivenessPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 10, Iss 2, Pp 127-137 (2015)
institution DOAJ
collection DOAJ
language EN
topic high temperature
copper molybdate
solid lubricant
cu3mo2o9
cumoo4
copper oxide
molybdenum trioxide
adhesiveness
Physics
QC1-999
Engineering (General). Civil engineering (General)
TA1-2040
Mechanical engineering and machinery
TJ1-1570
Chemistry
QD1-999
spellingShingle high temperature
copper molybdate
solid lubricant
cu3mo2o9
cumoo4
copper oxide
molybdenum trioxide
adhesiveness
Physics
QC1-999
Engineering (General). Civil engineering (General)
TA1-2040
Mechanical engineering and machinery
TJ1-1570
Chemistry
QD1-999
Yoshinori Takeichi
Masato Inada
Kentaro Minami
Masahiro Kawamura
Marian Dzimko
Tribological Properties of Copper Molybdate Powder Solid Lubricants under High Temperature Conditions
description In our previous research, it was suggested that a sort of copper molybdate Cu3Mo2O9 generated on the friction track of aluminum bronze coated with MoO3 powder reduced friction under high temperature conditions. In order to study the lubricity of copper molybdate as high temperature lubricant, the lubrication properties of two kinds of copper molybdate powders, CuMoO4 and Cu3Mo2O9, were studied by comparing with the lubricity of CuO and MoO3 powders. These powders were supplied to the sliding surface of the stainless steel specimens as solid lubricant and the friction test was conducted at various ambient temperatures ranging from room temperature to 700°C. Cu3Mo2O9 and CuMoO4 powders were synthesized by heating the mixture of CuO and MoO3 powders in their own specific heating conditions and identified by XRD. Both of Cu3Mo2O9 and CuMoO4 powders showed lower friction coefficient and smaller wear amount of specimen with increasing ambient temperature. On the other hand, CuO and MoO3 powders showed poor lubricating ability and high wear amount of specimens comparing with two kinds of copper molybdate powders. It was suggested that the enhanced maintaining abilities of copper molybdate on the stainless steel substrate at high temperature and generation of unoxidized copper under high temperature conditions could enhance lubricating abilities.
format article
author Yoshinori Takeichi
Masato Inada
Kentaro Minami
Masahiro Kawamura
Marian Dzimko
author_facet Yoshinori Takeichi
Masato Inada
Kentaro Minami
Masahiro Kawamura
Marian Dzimko
author_sort Yoshinori Takeichi
title Tribological Properties of Copper Molybdate Powder Solid Lubricants under High Temperature Conditions
title_short Tribological Properties of Copper Molybdate Powder Solid Lubricants under High Temperature Conditions
title_full Tribological Properties of Copper Molybdate Powder Solid Lubricants under High Temperature Conditions
title_fullStr Tribological Properties of Copper Molybdate Powder Solid Lubricants under High Temperature Conditions
title_full_unstemmed Tribological Properties of Copper Molybdate Powder Solid Lubricants under High Temperature Conditions
title_sort tribological properties of copper molybdate powder solid lubricants under high temperature conditions
publisher Japanese Society of Tribologists
publishDate 2015
url https://doaj.org/article/84255563f8334817a88c3c80644b06a9
work_keys_str_mv AT yoshinoritakeichi tribologicalpropertiesofcoppermolybdatepowdersolidlubricantsunderhightemperatureconditions
AT masatoinada tribologicalpropertiesofcoppermolybdatepowdersolidlubricantsunderhightemperatureconditions
AT kentarominami tribologicalpropertiesofcoppermolybdatepowdersolidlubricantsunderhightemperatureconditions
AT masahirokawamura tribologicalpropertiesofcoppermolybdatepowdersolidlubricantsunderhightemperatureconditions
AT mariandzimko tribologicalpropertiesofcoppermolybdatepowdersolidlubricantsunderhightemperatureconditions
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