Effect of Pillar and Mesh Structure of Tetrahedral Amorphous Carbon (ta-C) Coatings on the Wear Properties and Fracture Toughness of the Coating

Wear by fracture is among the factors associated with the DLC coating failures in the tribological application. The current study investigated the link between the wear and the fracture-toughness on the novel Pillar and Mesh structure ta-C coatings, in addition to conventional ta-C coatings. The tri...

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Autores principales:	Mohd Muhyiddin Bin Mustafa, Noritsugu Umehara, Takayuki Tokoroyama, Motoyuki Murashima, Akinori Shibata, Yoshiharu Utsumi, Hideki Moriguchi
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2019
Materias:	diamond-like carbon coating dlc structure fracture toughness wear crack resistance vickers indenter 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/a158a631aa28426cb15860124c7095ce
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spelling	oai:doaj.org-article:a158a631aa28426cb15860124c7095ce2021-11-05T09:17:25ZEffect of Pillar and Mesh Structure of Tetrahedral Amorphous Carbon (ta-C) Coatings on the Wear Properties and Fracture Toughness of the Coating1881-219810.2474/trol.14.388https://doaj.org/article/a158a631aa28426cb15860124c7095ce2019-12-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/14/5/14_388/_pdf/-char/enhttps://doaj.org/toc/1881-2198Wear by fracture is among the factors associated with the DLC coating failures in the tribological application. The current study investigated the link between the wear and the fracture-toughness on the novel Pillar and Mesh structure ta-C coatings, in addition to conventional ta-C coatings. The tribological properties of these coatings were examined under base-oil lubrication via ball-on-disk tribo-tester and micro indentation technique was used to characterize the fracture toughness. The wear track and the indentation mark were analyzed using the optical microscope, 3D laser microscope and FE-SEM. The friction coefficient for ta-C, Pillar ta-C and Mesh ta-C are within the range of 0.071 to 0.106. Mesh ta-C indicated the highest wear resistance, followed by the Pillar ta-C and conventional ta-C. Also, Mesh ta-C demonstrated the highest fracture-toughness value with 16.6 MPa·m1/2, followed by Pillar ta-C with 13.4 MPa·m1/2 in contrast to ta-C. Greater resistance to wear for ta-C with Pillar and Mesh structure was detected with an increased fracture-toughness and improvement in crack propagation inhibition. Moreover, the Pillar and Mesh ta-C provides superior rate of crack-energy dissipation as compared to the ta-C.Mohd Muhyiddin Bin MustafaNoritsugu UmeharaTakayuki TokoroyamaMotoyuki MurashimaAkinori ShibataYoshiharu UtsumiHideki MoriguchiJapanese Society of Tribologistsarticlediamond-like carbon coatingdlc structurefracture toughnesswearcrack resistancevickers indenterPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 14, Iss 5, Pp 388-397 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	diamond-like carbon coating dlc structure fracture toughness wear crack resistance vickers indenter Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	diamond-like carbon coating dlc structure fracture toughness wear crack resistance vickers indenter Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Mohd Muhyiddin Bin Mustafa Noritsugu Umehara Takayuki Tokoroyama Motoyuki Murashima Akinori Shibata Yoshiharu Utsumi Hideki Moriguchi Effect of Pillar and Mesh Structure of Tetrahedral Amorphous Carbon (ta-C) Coatings on the Wear Properties and Fracture Toughness of the Coating
description	Wear by fracture is among the factors associated with the DLC coating failures in the tribological application. The current study investigated the link between the wear and the fracture-toughness on the novel Pillar and Mesh structure ta-C coatings, in addition to conventional ta-C coatings. The tribological properties of these coatings were examined under base-oil lubrication via ball-on-disk tribo-tester and micro indentation technique was used to characterize the fracture toughness. The wear track and the indentation mark were analyzed using the optical microscope, 3D laser microscope and FE-SEM. The friction coefficient for ta-C, Pillar ta-C and Mesh ta-C are within the range of 0.071 to 0.106. Mesh ta-C indicated the highest wear resistance, followed by the Pillar ta-C and conventional ta-C. Also, Mesh ta-C demonstrated the highest fracture-toughness value with 16.6 MPa·m1/2, followed by Pillar ta-C with 13.4 MPa·m1/2 in contrast to ta-C. Greater resistance to wear for ta-C with Pillar and Mesh structure was detected with an increased fracture-toughness and improvement in crack propagation inhibition. Moreover, the Pillar and Mesh ta-C provides superior rate of crack-energy dissipation as compared to the ta-C.
format	article
author	Mohd Muhyiddin Bin Mustafa Noritsugu Umehara Takayuki Tokoroyama Motoyuki Murashima Akinori Shibata Yoshiharu Utsumi Hideki Moriguchi
author_facet	Mohd Muhyiddin Bin Mustafa Noritsugu Umehara Takayuki Tokoroyama Motoyuki Murashima Akinori Shibata Yoshiharu Utsumi Hideki Moriguchi
author_sort	Mohd Muhyiddin Bin Mustafa
title	Effect of Pillar and Mesh Structure of Tetrahedral Amorphous Carbon (ta-C) Coatings on the Wear Properties and Fracture Toughness of the Coating
title_short	Effect of Pillar and Mesh Structure of Tetrahedral Amorphous Carbon (ta-C) Coatings on the Wear Properties and Fracture Toughness of the Coating
title_full	Effect of Pillar and Mesh Structure of Tetrahedral Amorphous Carbon (ta-C) Coatings on the Wear Properties and Fracture Toughness of the Coating
title_fullStr	Effect of Pillar and Mesh Structure of Tetrahedral Amorphous Carbon (ta-C) Coatings on the Wear Properties and Fracture Toughness of the Coating
title_full_unstemmed	Effect of Pillar and Mesh Structure of Tetrahedral Amorphous Carbon (ta-C) Coatings on the Wear Properties and Fracture Toughness of the Coating
title_sort	effect of pillar and mesh structure of tetrahedral amorphous carbon (ta-c) coatings on the wear properties and fracture toughness of the coating
publisher	Japanese Society of Tribologists
publishDate	2019
url	https://doaj.org/article/a158a631aa28426cb15860124c7095ce
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Effect of Pillar and Mesh Structure of Tetrahedral Amorphous Carbon (ta-C) Coatings on the Wear Properties and Fracture Toughness of the Coating

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