Abstract Today gold is used as contact material on electric contacts for low current applications. Gold, however, has low wear resistance, is expensive and environmentally stressful to produce. An alternative contact material to gold is nano composite Ti-Si-C-Ag deposited with DC-magnetron sputtering. Nano composite Ti-Si-C-Ag has so far been deposited by a compound Ti-Si-C sputter target with ...

Oxidation of low density lipoprotein (LDL) has been strongly implicated in the phathogenesis of atherosclerosis. The use of oxidants in dietary food stuff may lead to the production of oxidized LDL and may increase both the development and the progression of atherosclerosis. The present work investigated the effects of some elements including: copper (Cu), iron (Fe), vanadium (V) and titanium (...

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Amorphous complexions have recently been demonstrated to simultaneously enhance the ductility and stability of certain nanocrystalline alloys. In this study, three quinary alloys (Cu–Zr–Hf–Mo–Nb, Cu–Zr–Hf–Nb–Ti, Cu–Zr–Hf–Mo–W) are studied test hypothesis that increasing chemical complexity grain boundaries will result in thicker amorphous further stabilize a microstructure. Significant boundary...

Internal friction and ultrasonic attenuation peaks associated with diffusionless phase transformations in alloys, such as thermoelastic martensites and others, were reviewed. They were discussed from the stand point of (1) Understanding the mechanism of the phase transformations and (2) Developing new alloy materials of high damping capacity for application to noise and vibration abatement. Pha...

New developments of antimicrobial implant surfaces doped with copper (Cu) ions may minimize the risk of implant-associated infections. However, experimental evaluation of the Cu release is influenced by various test parameters. The aim of our study was to evaluate the Cu release characteristics in vitro according to the storage fluid and surface roughness. Plasma immersion ion implantation of C...

In order to enhance the photoelectric conversion efficiency of a photoanode and broaden its light absorption range, ZnIn2S4/UiO-66/TiO2/Ti composite was developed. The maximum photocurrent density prepared is 2.56 mA cm?2 at 1.2 V (versus SCE), which 1.79 times higher than that ZnIn2S4/TiO2/Ti. rhodamine B (RhB) removal rate, short-circuit current power photocatalytic fuel cell (PFC) constructe...

PURPOSE To test the mechanical stability and histologic osseointegration under load-bearing conditions of 2 different materials, pyrocarbon (Py) and titanium (Ti), in a rabbit model. METHODS Proximal interphalangeal implants (9 Ti, 8 Py) were placed into rabbit knees and the animals were killed after 3 months. Subsidence was assessed by monthly x-rays. Mechanical stability was measured with a...