Evaluation and parametric modelling of abrasive wear resistance of ion-plated thin DLC films

Garnev, I.; Orlinov, V.

doi:10.1016/0925-9635(95)00286-3

Cited by 9 publications

(6 citation statements)

References 9 publications

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“…The surfaces of PMP HFMs were exposed to graphite deposition for 30 min by the ion plating method . In this process, an arc current hit the graphite target (99.99%) in a vacuum chamber, forming a thin DLC film on the PMP membrane surface.…”

Section: Methodsmentioning

confidence: 99%

The Surface of a PMP Hollow Fiber Membrane Was Modified with a Diamond-like Carbon Film to Enhance the Blood Compatibility of an Artificial Lung Membrane

Sheng,

Zhang,

Shang

et al. 2023

Langmuir

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The contact between the blood and the surface of medical materials causes a series of rejection reactions. In this process, the plasma protein is adsorbed to the surface of materials within seconds and binds to glycoprotein receptors on platelets, causing platelet activation, coagulation cascade, and complement activation to form thrombus, which greatly limits the application of medical materials. In our work, the surface of poly(4-methyl-1-pentene) hollow fiber membranes (PMP HFMs) was coated with a diamond-like carbon (DLC) film by the ion plating method. The blood compatibility of the DLC coating was evaluated by protein adsorption, platelet adhesion, clotting time, red blood cell (RBCs) hemolysis, dynamic coagulation, and extracorporeal blood circulation tests. Compared with the unmodified PMP membrane, the DLC film could effectively reduce protein adsorption and platelet adhesion and prolong the coagulation time. The DLC coating showed BSA adsorption of as low as 0.53 μg/cm2 as well as a long activated partial thromboplastin time (APTT) value of 71.84 s. Furthermore, the PMP membrane modified with the DLC coating was used for extracorporeal blood circulation without thrombosis forming within 28 days. The DLC coating is one of the most promising medical coatings as an artificial lung membrane in extracorporeal membrane oxygenation (ECMO) equipment.

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Section: Methodsmentioning

confidence: 99%

The Surface of a PMP Hollow Fiber Membrane Was Modified with a Diamond-like Carbon Film to Enhance the Blood Compatibility of an Artificial Lung Membrane

Sheng,

Zhang,

Shang

et al. 2023

Langmuir

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“…In this method, the response is influenced by several variables and the objective is to optimize this response. RSM not only defines the relation between parameters and responses but can also estimate the effects of individual parameters and the interaction of parameters on each of the response variable [23][24][25]. On the basis of the single factor experiment, optimization for the maximum organic phase yield was analyzed by employing Box-Behnken design (BBD) in RSM using Design-Expert software (StatEase, USA).…”

Section: Response Surface Methodology (Rsm)mentioning

confidence: 99%

Study on the response surface optimization of online upgrading of bio-oil with MCM-41 and catalyst durability analysis

Liu

Cai

Yue

et al. 2016

Environmental Engineering Research

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Direct catalysis of vapors from vacuum pyrolysis of biomass was performed on MCM-41 to investigate the effects of operating parameters including catalyzing temperature, catalyzing bed height and system pressure on the organic yields. Optimization of organic phase yield was further conducted by employing response surface methodology. The statistical analysis showed that operating parameters have significant effects on the organic phase yield. The organic phase yield first increases and then decreases as catalyzing temperature and catalyzing bed height increase, and decreases as system pressure increases. The optimal conditions for the maximum organic phase yield were obtained at catalyzing temperature of 502.7℃, catalyzing bed height of 2.74 cm and system pressure of 6.83 kPa, the organic phase yield amounts to 15.84% which is quite close to the predicted value 16.19%. The H/C, O/C molar ratios (dry basis), density, pH value, kinematic viscosity and high heat value of the organic phase obtained at optimal conditions were 1.287, 0.174, 0.98 g/cm 3 , 5.12, 5.87 mm 2 /s and 33.08 MJ/kg, respectively. Organic product compositions were examined using gas chromatography/mass spectrometry and the analysis showed that the content of oxygenated aromatics in organic phase had decreased and hydrocarbons had increased, and the hydrocarbons in organic phase were mainly aliphatic hydrocarbons. Besides, thermo-gravimetric analysis of the MCM-41 zeolite was conducted within air atmosphere and the results showed that when the catalyst continuously works over 100 min, the index of physicochemical properties of bio-oil decreases gradually from 1.15 to 0.45, suggesting that the refined bio-oil significantly deteriorates. Meanwhile, the coke deposition of catalyst increases from 4.97% to 14.81%, which suggests that the catalytic activity significantly decreases till the catalyst completely looses its activity.

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“…In this method, only one variable was varied at a time while all other conditions were kept constant. For this reason, the one-factor-at-a-time method cannot disclose any important interactions that might exist among the variables [10,11]. Also, the one-factor-at-atime methodology increases the number of experiments necessary to conduct the research.…”

Section: Introductionmentioning

confidence: 92%

“…RSM not only defines the relation between parameters and responses but can also estimate the effects of individual parameters and the interaction of parameters on each of the response variables [11,13].…”

Section: Statistical Experimental Designmentioning

confidence: 99%

See 1 more Smart Citation

RSM base study of the effect of deposition temperature and hydrogen flow on the wear behavior of DLC films

Ebrahimi

Mahboubi

Naimi-Jamal

2015

Tribology International

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Evaluation and parametric modelling of abrasive wear resistance of ion-plated thin DLC films

Cited by 9 publications

References 9 publications

The Surface of a PMP Hollow Fiber Membrane Was Modified with a Diamond-like Carbon Film to Enhance the Blood Compatibility of an Artificial Lung Membrane

The Surface of a PMP Hollow Fiber Membrane Was Modified with a Diamond-like Carbon Film to Enhance the Blood Compatibility of an Artificial Lung Membrane

Study on the response surface optimization of online upgrading of bio-oil with MCM-41 and catalyst durability analysis

RSM base study of the effect of deposition temperature and hydrogen flow on the wear behavior of DLC films

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