Wear behavior of DC unbalanced magnetron sputter deposited ZrCN films

Yao, Shuhuai; Su, Y. K.; Kao, W. H.; Cheng, Kuo‐Sheng

doi:10.1016/j.matlet.2005.04.064

Cited by 34 publications

(18 citation statements)

References 23 publications

(16 reference statements)

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“…The use of nanocomposite protective films, based on the combination of various transition metal carbides, nitrides and carbonitrides, has already been reported [18][19][20][21][22][23]. Within these materials, zirconium carbonitride (ZrCN) start to appear as a promising material for biomedical use [24][25][26].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Silver activation on thin films of Ag–ZrCN coatings for antimicrobial activity

Ferreri

Galindo

Palácio

et al. 2015

Materials Science and Engineering: C

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Nowadays, with the increase of elderly population and related health problems, knee and hip joint prosthesis are being widely used worldwide. However, failure of these invasive devices occurs in a high percentage thus demanding the revision of the chirurgical procedure. Within the reasons of failure, microbial infections, either hospital or subsequently-acquired, contribute in high number to the statistics. Staphylococcus epidermidis (S. epidermidis) has emerged as one of the major nosocomial pathogens associated with these infections. Silver has a historic performance in medicine due to its potent antimicrobial activity, with a broad-spectrum on the activity of different types of microorganisms. Consequently, the main goal of this work was to produce Ag-ZrCN coatings with antimicrobial activity, for the surface modification of hip prostheses. Thin films of ZrCN with several silver concentrations were deposited onto stainless steel 316 L, by DC reactive magnetron sputtering, using two targets, Zr and Zr with silver pellets (Zr+Ag target), in an atmosphere containing Ar, C2H2 and N2. The antimicrobial activity of the modified surfaces was tested against S. epidermidis and the influence of an activation step of silver was assessed by testing samples after immersion in a 5% (w/v) NaClO solution for 5 min. The activation procedure revealed to be essential for the antimicrobial activity, as observed by the presence of an inhibition halo on the surface with 11 at.% of Ag. The morphology analysis of the surface before and after the activation procedure revealed differences in silver distribution indicating segregation/diffusion of the metallic element to the film's surface. Thus, the results indicate that the silver activation step is responsible for an antimicrobial effect of the coatings, due to silver oxidation and silver ion release.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Silver activation on thin films of Ag–ZrCN coatings for antimicrobial activity

Ferreri

Galindo

Palácio

et al. 2015

Materials Science and Engineering: C

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“…The metallic constituents were specifically selected considering their possible beneficial effects on coating properties: Ti and Nb are known to form hard carbide compounds, Cr incorporation improves oxidation resistance and corrosion resistance, Y induces grain refinement, hardness enhancement and thermal stability [13][14][15][16][17][18], while Cu addition to TiC coatings was found to improve coating characteristics [19] In addition, the chosen metallic elements have significant differences in atomic radii, which are expected to favor the formation of nano-crystalline structures or amorphous phases (e.g. [12,20]).…”

Section: Introductionmentioning

confidence: 99%

Effects of substrate temperature and carbon content on the structure and properties of (CrCuNbTiY)C multicomponent coatings

Braic

Parau

Pană

et al. 2014

Surface and Coatings Technology

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“…Among the large refractory-metal carbonitrides, ZrCN is an attractive material because of its excellent chemical and physical properties, such as a relatively low electrical resistivity and high corrosion resistance. 11 Zr alloys undergo corrosion in high-temperature water and steam, with rapid initial corrosion forming an oxide layer which causes the oxidation rate to slow down. This is because the migration of charged species (oxygen ions and electrons) across the oxide thickness is inhibited.…”

Section: Introductionmentioning

confidence: 99%

ZrMoN films on 304 stainless steel as bipolar plates for PEMFCs using physical-vapor-deposition (PVD) technology

Zheng¹,

Chen²

2017

Mater. Tehnol.

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ZrMoN films were deposited on a 304 stainless-steel (SS304) substrate with a radio-frequency (RF) reactive magnetron-sputtering system and the properties were changed by adjusting the power of the Mo target. The corrosion behaviors of the ZrMoN films were investigated with potentiodynamic tests and electrochemical impedance spectroscopy (EIS) under the condition of an aerated 0.5M H2SO4 + 1,99 mg/L NaF solution at 70°C. The results revealed that all samples with ZrMoN films have good hydrophobicity. The XRD test showed that the ZrMoN film is the substitutional solid solution of Mo atoms into ZrN films. As an overall evaluation, the power of the Mo target is 30W. A coated sample displays the best corrosion resistance in the cathode of the PEMFC environment when the power of the Mo target is considered, which indicates that with an increase of the power of the Mo target, the solid solubility also increases; but with a continuous increase of the Mo-target power, the solubility increases and a lattice distortion also occurs, leading to an increase in defects. Keywords: ZrMoN, corrosion behavior, bipolar-plate material, physical-vapor-deposition technology (PVD) ZrMoN prevleke so bile nane{ene na substrat 304 nerjavnega jekla (SS 304) z radiofrekven~nim reaktivnim (angl. RF) magnetronskim napr{evalnikom in lastnosti so bile spremenjene s prilagoditvijo mo~i Mo tar~e. Korozijsko obna{anje prevlek ZrMoN smo raziskovali s potenciodinamskimi preizkusi in elektrokemijsko impedan~no spektroskopijo (EIS) v raztopini 0,5 M H2SO4 + 1,99 mg/L NaF pri temperaturi 70°C. Rezultati so pokazali, da imajo vsi vzorci z ZrMoN prevlekami dobro hidrofobnost. XRD-analiza ka`e, da je prevleka ZrMoN nadomestna trdna raztopina atomov Mo v ZrN plasti. Rezultati ka`ejo najbolj{o korozijsko odpornost na katodi v okolju PEMFC pri mo~i Mo tar~e 30 W, kar ka`e, da se s pove~anjem mo~i Mo pove~uje tudi trdna topnost. Vendar pa se s kontinuiranim pove~evanjem mo~i Mo tar~e neprestano pove~uje tudi topnost, zato pride do popa~enja kristalne mre`e, kar povzro~i pove~anje napak. Klju~ne besede: ZrMoN, korozijsko obna{anje, bipolarni material, tehnologija nana{anja iz parne faze (PVD)

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Wear behavior of DC unbalanced magnetron sputter deposited ZrCN films

Cited by 34 publications

References 23 publications

Silver activation on thin films of Ag–ZrCN coatings for antimicrobial activity

Silver activation on thin films of Ag–ZrCN coatings for antimicrobial activity

Effects of substrate temperature and carbon content on the structure and properties of (CrCuNbTiY)C multicomponent coatings

ZrMoN films on 304 stainless steel as bipolar plates for PEMFCs using physical-vapor-deposition (PVD) technology

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