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Papers by hicham larhlimi

Materials Letters, 2020

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Materials Letters, 2020

Hard coatings are extensively used in various industries, including automotive, aerospace and too... more Hard coatings are extensively used in various industries, including automotive, aerospace and tooling industries. Hard coatings are deposited using, typically, chemical vapor deposition (CVD) and physical vapor deposition (PVD) techniques. Among these, magnetron sputtering (MS) is widely used to deposit hard transition metal nitrides and oxides. In the last 20 years, technological development gave birth to a highly ionized magnetron sputtering technique called High Power Impulse Magnetron Sputtering (HiPIMS) that allows application tailored coating development. The present article reviews studies on the deposition of hard coatings by HiPIMS and direct current MS (dcMS). The effect of alloying and coating architecture design on mechanical properties is highlighted, and comparative studies highlighting the difference between the two techniques are reviewed, while the effect of different HiPIMS deposition parameters on the mechanical properties of the coatings is presented and discussed.

Surface and Coatings Technology, 2020

The quality of coatings deposited by magnetron sputtering is known to depend on, among others, th... more The quality of coatings deposited by magnetron sputtering is known to depend on, among others, the magnetic field strength (Φ) and the magnetic field configuration. Furthermore, high power impulse magnetron sputtering (HiPIMS) is known to result in low defect-high density coatings, and is therefore used to deposit barrier coatings against wear and corrosion. The influence of varying the Φ, on deposition rate (R), structure and hardness of titanium nitride coatings prepared by HiPIMS and dc magnetron sputtering (dcMS) was investigated. At 22mT, the ratio between HiPIMS deposition rate and dcMS deposition rate (R HiPIMS /R dcMS) was almost equal to 1. As Φ was increased from 22mT to 35mT, R decreased by 28% for HiPIMS and increased by 15.6% for dcMS, and R HiPIMS /R dcMS was reduced from 1 to 0.63. From 35mT to 44mT, the decrease in R slowed to 6% for HiPIMS and to 12.5% for dcMS. The (111) orientation was dominant over (200) orientation for both HiPIMS and dcMS, and become less dominant with the Φ in the case of dcMS. The residual stresses and surface roughness were determined and their evolution with Φ is highlighted. Mechanical characterization of the deposited coatings was performed, where the hardness tests showed that on average the HiPIMS coatings (29-34GPa) were some 5 GPa harder than dcMS coatings (25-27GPa).

Applied Surface Science, 2021

ChemistrySelect, 2020

Phosphorus Containing Coatings (PCCs) are an interesting class of materials that attracted consid... more Phosphorus Containing Coatings (PCCs) are an interesting class of materials that attracted considerable attention for use in different domains. A variety of PCCs characterized by outstanding electrical, biological, and chemical properties have been manufactured using various physical and chemical deposition processes. Thanks to developments in thin film and surface deposition technologies, it has become possible to manipulate the formation of PCCs according to the desired application, which has therefore been a mean of promoting this type of material towards new products and processes. This review explores the potential of the PCCs and deposition methods which can be used for their fabrication. Highlights on the connections between processing methods and the resulting film characteristics will be provided. The resulting coatings' properties are discussed in the context of the characteristics necessary for achieving high-performance PCCs in different sectors. Important prospects for PCCs research and their practical use in different fields will also be provided, and light will be shed on the future research directions for further progress of promising PCCs for the next film technology generations.

Journal of Bio- and Tribo-Corrosion

Materials Letters, 2020

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Materials Letters, 2020

Hard coatings are extensively used in various industries, including automotive, aerospace and too... more Hard coatings are extensively used in various industries, including automotive, aerospace and tooling industries. Hard coatings are deposited using, typically, chemical vapor deposition (CVD) and physical vapor deposition (PVD) techniques. Among these, magnetron sputtering (MS) is widely used to deposit hard transition metal nitrides and oxides. In the last 20 years, technological development gave birth to a highly ionized magnetron sputtering technique called High Power Impulse Magnetron Sputtering (HiPIMS) that allows application tailored coating development. The present article reviews studies on the deposition of hard coatings by HiPIMS and direct current MS (dcMS). The effect of alloying and coating architecture design on mechanical properties is highlighted, and comparative studies highlighting the difference between the two techniques are reviewed, while the effect of different HiPIMS deposition parameters on the mechanical properties of the coatings is presented and discussed.

Surface and Coatings Technology, 2020

The quality of coatings deposited by magnetron sputtering is known to depend on, among others, th... more The quality of coatings deposited by magnetron sputtering is known to depend on, among others, the magnetic field strength (Φ) and the magnetic field configuration. Furthermore, high power impulse magnetron sputtering (HiPIMS) is known to result in low defect-high density coatings, and is therefore used to deposit barrier coatings against wear and corrosion. The influence of varying the Φ, on deposition rate (R), structure and hardness of titanium nitride coatings prepared by HiPIMS and dc magnetron sputtering (dcMS) was investigated. At 22mT, the ratio between HiPIMS deposition rate and dcMS deposition rate (R HiPIMS /R dcMS) was almost equal to 1. As Φ was increased from 22mT to 35mT, R decreased by 28% for HiPIMS and increased by 15.6% for dcMS, and R HiPIMS /R dcMS was reduced from 1 to 0.63. From 35mT to 44mT, the decrease in R slowed to 6% for HiPIMS and to 12.5% for dcMS. The (111) orientation was dominant over (200) orientation for both HiPIMS and dcMS, and become less dominant with the Φ in the case of dcMS. The residual stresses and surface roughness were determined and their evolution with Φ is highlighted. Mechanical characterization of the deposited coatings was performed, where the hardness tests showed that on average the HiPIMS coatings (29-34GPa) were some 5 GPa harder than dcMS coatings (25-27GPa).

Applied Surface Science, 2021

ChemistrySelect, 2020

Phosphorus Containing Coatings (PCCs) are an interesting class of materials that attracted consid... more Phosphorus Containing Coatings (PCCs) are an interesting class of materials that attracted considerable attention for use in different domains. A variety of PCCs characterized by outstanding electrical, biological, and chemical properties have been manufactured using various physical and chemical deposition processes. Thanks to developments in thin film and surface deposition technologies, it has become possible to manipulate the formation of PCCs according to the desired application, which has therefore been a mean of promoting this type of material towards new products and processes. This review explores the potential of the PCCs and deposition methods which can be used for their fabrication. Highlights on the connections between processing methods and the resulting film characteristics will be provided. The resulting coatings' properties are discussed in the context of the characteristics necessary for achieving high-performance PCCs in different sectors. Important prospects for PCCs research and their practical use in different fields will also be provided, and light will be shed on the future research directions for further progress of promising PCCs for the next film technology generations.

Journal of Bio- and Tribo-Corrosion