Mechanical and Tribological Properties Evolution of [Si3N4/Al2O3]n Multilayer Coatings
Multilayer coatings [Si3N4/Al2O3]n have generated great interest due to their intriguing properties which have made them a potential candidate to be implemented in different processes within the food and pharmaceutical industries. Unfortunately, this multilayer system based on [Si3N4/Al2O3]n does no...
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University of Kragujevac
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doaj-8dc772d15765453f845fd2d6023d38852021-04-09T09:09:02ZengUniversity of KragujevacTribology in Industry0354-89962217-79652021-03-01431233910.24874/ti.952.08.20.01Mechanical and Tribological Properties Evolution of [Si3N4/Al2O3]n Multilayer CoatingsC.H. Ortiz0https://orcid.org/0000-0001-9800-2482E. Hernandez-Rengifo1https://orcid.org/0000-0001-8175-1110A. Guerrero2https://orcid.org/0000-0003-4816-8155W. Aperador3https://orcid.org/0000-0003-1778-0851J.C. Caicedo4https://orcid.org/0000-0001-9621-1723Tribology, Powder Metallurgy and Processing of Solid Recycled Research Group, Universidad del Valle, Cali, ColombiaTribology, Powder Metallurgy and Processing of Solid Recycled Research Group, Universidad del Valle, Cali, ColombiaTribology, Powder Metallurgy and Processing of Solid Recycled Research Group, Universidad del Valle, Cali, ColombiaUniversidad Militar Nueva Granada, Bogotá, ColombiaTribology, Powder Metallurgy and Processing of Solid Recycled Research Group, Universidad del Valle, Cali, ColombiaMultilayer coatings [Si3N4/Al2O3]n have generated great interest due to their intriguing properties which have made them a potential candidate to be implemented in different processes within the food and pharmaceutical industries. Unfortunately, this multilayer system based on [Si3N4/Al2O3]n does not have strong tribological studies that could express in an emphatic way its own tribological characteristics. For this reason, the aim of this research consisted of a detailed study of the evolution of the mechanical and tribological properties of the [Si3N4/Al2O3]n coatings as a function of the bilayer number n=1, 10, 30 and 70, with special emphasis on the tribological analysis in a dry and lubricated environment. It was determined that the mechanical properties such as the hardness and the elastic modulus increased by 29% and 6.3%, while the friction coefficient in a dry and lubricated environment decreased by 33% and 81.8%, respectively, when increasing the bilayers from n=1 to n=70. Thus, the present study determined that the coating [Si3N4/Al2O3]70 presented ideal properties that make it a promising candidate to be implemented as a protective coating on processing devices within the food and pharmaceutical industry.http://www.tribology.rs/journals/2021/2021-1/2021-1-03.htmlphysical vapor deposition pvdmechanical propertiesmultilayer coatingsfriction coefficientlubricated tribological properties |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
C.H. Ortiz E. Hernandez-Rengifo A. Guerrero W. Aperador J.C. Caicedo |
spellingShingle |
C.H. Ortiz E. Hernandez-Rengifo A. Guerrero W. Aperador J.C. Caicedo Mechanical and Tribological Properties Evolution of [Si3N4/Al2O3]n Multilayer Coatings Tribology in Industry physical vapor deposition pvd mechanical properties multilayer coatings friction coefficient lubricated tribological properties |
author_facet |
C.H. Ortiz E. Hernandez-Rengifo A. Guerrero W. Aperador J.C. Caicedo |
author_sort |
C.H. Ortiz |
title |
Mechanical and Tribological Properties Evolution of [Si3N4/Al2O3]n Multilayer Coatings |
title_short |
Mechanical and Tribological Properties Evolution of [Si3N4/Al2O3]n Multilayer Coatings |
title_full |
Mechanical and Tribological Properties Evolution of [Si3N4/Al2O3]n Multilayer Coatings |
title_fullStr |
Mechanical and Tribological Properties Evolution of [Si3N4/Al2O3]n Multilayer Coatings |
title_full_unstemmed |
Mechanical and Tribological Properties Evolution of [Si3N4/Al2O3]n Multilayer Coatings |
title_sort |
mechanical and tribological properties evolution of [si3n4/al2o3]n multilayer coatings |
publisher |
University of Kragujevac |
series |
Tribology in Industry |
issn |
0354-8996 2217-7965 |
publishDate |
2021-03-01 |
description |
Multilayer coatings [Si3N4/Al2O3]n have generated great interest due to their intriguing properties which have made them a potential candidate to be implemented in different processes within the food and pharmaceutical industries. Unfortunately, this multilayer system based on [Si3N4/Al2O3]n does not have strong tribological studies that could express in an emphatic way its own tribological characteristics. For this reason, the aim of this research consisted of a detailed study of the evolution of the mechanical and tribological properties of the [Si3N4/Al2O3]n coatings as a function of the bilayer number n=1, 10, 30 and 70, with special emphasis on the tribological analysis in a dry and lubricated environment. It was determined that the mechanical properties such as the hardness and the elastic modulus increased by 29% and 6.3%, while the friction coefficient in a dry and lubricated environment decreased by 33% and 81.8%, respectively, when increasing the bilayers from n=1 to n=70. Thus, the present study determined that the coating [Si3N4/Al2O3]70 presented ideal properties that make it a promising candidate to be implemented as a protective coating on processing devices within the food and pharmaceutical industry. |
topic |
physical vapor deposition pvd mechanical properties multilayer coatings friction coefficient lubricated tribological properties |
url |
http://www.tribology.rs/journals/2021/2021-1/2021-1-03.html |
work_keys_str_mv |
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