Diamond-like carbon (DLC) films with different structure were deposited on highly electrically conductive silicon substrates (SiO ySi), using d.c. magnetron sputtering deposition process. Their structure and electrochemical behavior in a 0.5 M H SO 2 2 4 solution were studied with micro-Raman spectroscopy, electrochemical impedance spectroscopic analysis and film impedance spectroscopy. The com...

The purpose of this study was to establish a multi-segment dynamic model in the LifeMOD to examine kinematics of the center of mass and foot, and muscle forces of selected upper extremity muslces during a double-leg circle (DLC) movement on pommel horse in gymnastics and compared with three-dimensional kinematics of the movement and surface electromyographic (sEMG) activity of the muscles. The ...

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...

Diamond-like carbon (DE) films are characterized by very low friction coefficients, high wear resistance and high corrosion resistance. Depending upon the testing environment, the coefficient of friction can be as low as 0.01. As-deposited films are wear resistant in vacuum as well as in atmospheric ambient. However, the tribological properties of DLC are strongly affected by the deposition met...

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 anti-fouling ability of diamond-like carbon (DLC) electrodes to biological macromolecules has been investigated from a decrease in the electrochemical redox current of Fe(CN)(6)(4-/3-), used as a redox marker. A DLC electrode and a glassy carbon (GC) electrode were immersed in a solution containing bovine serum albumin (BSA) or DNA. The GCs treated with biological macromolecules gave rise to...

X-ray absorption near-edge structure (XANES) and valence-band photoemission spectroscopy (VB-PES) were used to elucidate the electronic and mechanical properties of diamond-like carbon (DLC) thin films deposited by the plasma-enhanced chemical vapour deposition method at various bias voltages (V(b)) using a C(2)H(2) vapour precursor in an Ar(+) atmosphere. The increase of V(b) is found to incre...

The DLC/Kapton structures irradiated with 60Co ?-rays at doses to 1 MGy have been studied by measuring transmission and attenuated total reflection (ATR) spectra. It has shown that there are significant changes in the spectra ranges of vibrations ?–?, CH2, CH3 bonds due radiation-induced processes byproducts polyimide synthesis residual solvents. Significant differences were found occurring bul...

We have developed capacitively-transduced nanomechanical resonators using sp(2)-rich diamond-like carbon (DLC) thin films as conducting membranes. The electrically conducting DLC films were grown by physical vapor deposition at a temperature of 500 °C. Characterizing the resonant response, we find a larger than expected frequency tuning that we attribute to the membrane being buckled upwards, a...

Every year, billions of dollars are invested in research and development for space applications, including new systems, technologies, materials. DLC (Diamond-Like Carbon) is a promising material use these but its faces technological barrier, since it severely etched by atomic oxygen ozone. In this study, SiOx-DLC thin films were deposited as top layer diamond-like carbon (DLC) on Ti-6Al-4V subs...