Silicone tubing is used in small-diameter long-sized tubes for medical applications, such as urinary catheters. However, bacteria urine adhere to the catheters, forming colonies and biofilms resulting blockages tract infections. Therefore, we have reported a method of AC high-voltage plasma chemical vapor deposition prevent bacterial adhesion by depositing diamond-like carbon (DLC) on lumen sil...

Abstract In the present study, laser surface texturing was tested with aim of improving tribological properties a diamond-like carbon (DLC) coating. Two experimental campaigns were designed to realize different micro-grids, and study effect marking speed, power, loop cycle. The grid profiles obtained analyzed using digital microscope probe system measure track cross section. At end experiments,...

Introduction: We present preliminary measurements of solar wind (SW) Na and K abundances measured by secondary ion mass spectrometry (SIMS). Genesis B/C (bulk SW) array silicon (Si) and diamondlike-carbon (DlC) on Si (DoS) collectors were analyzed using backside depth profiling (BDP). This is the first reported use of SIMS for BDP of thinned Genesis DoS collectors. Background: It is thought tha...

Introduction: SIMS analysis is widely used for Genesis sample measurements at various institutions, but only two laboratories [1,2] offer accelerator-based SIMS. The use of a tandem accelerator allows for breakup of molecules during the acceleration process, thus assuring removal of molecular interferences without significant loss in sensitivity. Additionally, both mass spectrometers [1,2] are ...

An electroactive passivation for high-voltage diodes with bevel termination has been investigated based on diamondlike carbon (DLC) films. Variations of the DLC properties, i.e., conductivity and geometry, have by experiments numerical simulations to purpose gaining an insight their influence diode leakage current breakdown voltage. The role played DLC/Si interface characterizing metal–DLC–Si d...

In this work, we reported the investigation of diamond-like carbon (DLC) coating on inner surface polyethylene terephthalate (PET) bottles by Microwave Plasma Enhanced Chemical Vapor Deposition to improve their barrier properties. We used 2.45 GHz microwave generate plasma, acetylene (C2H2) and argon (Ar) were as monomer gas diluted gas. The effects plasma process parameters deposition uniformi...

The present work investigates the deposition of carbon nanotubes (CNT) over HSS tool. Also, it assesses machining capacity coated tool with respect to some most important aspects machinability, such as surface roughness, cutting tool-tip temperature, forces, wear, and service life. Plasma Enhanced Chemical Vapour Deposition (PECVD) technique was used deposit CNTs substrate. To recognize dense C...

The results of the diamond-like carbon (DLC) coatings surface investigation with thickness 100, 300 and 500 nm, applied on hardened steel via laser ablation methods pulse arc discharge are presented. Topography, roughness, adhesion forces specific energy before after tribotests were studied using atomic force microscopy (AFM). changes in elastic modulus E microhardness H dry sliding friction ha...