The effects of the thickness (t), grain size (d), ratio t/d, and tensile direction on properties were carefully examined using ASTM grade 1 pure titanium having a strong B texture with controlled (0.2–0.4 mm), (20–175 µm), t/d (2.3–19.4). 0.2%-proof stress followed Hall-Petch relationship in each regardless thickness, this indicates that does not depend t/d. On other hand, strength uniform elon...

A dry bracelet electrode for electrocardiographic (ECG) signal monitoring was developed and successfully tested in human volunteers. The new electrode dispenses with the usual gel application and the previous skin preparation to monitor the signal. It was fabricated from a polyethylene tereftalate (PET) polymer sheet that was coated with a thin conductive titanium nitride (TiN) layer. As the di...

This paper reports a study into the regularities of interphase interaction, features in formation intermetallic phases (IMPs), and defects when surfacing steel on titanium four ways: P-MAG, CMT, plasma by an indirect arc with conductive wire, PAW. A general tendency has been established IMP occurrence all considered methods. It was determined that technique involving wire is less critical as re...

A novel methodology to identify a fatigue crack propagation law is proposed. It is based on an optimization scheme that directly interrogates the images from the sought law rather than using a sequence of fitting schemes. Two procedures are presented and tested first on artificial data with a known law, and second on an actual image series obtained from a fatigue test performed on a thin titani...

Bioelectrochemical systems (BESs) were first operated in microbial fuel cell mode for recovering Cu(II), and then shifted to microbial electrolysis cells for Cd(II) reduction on the same cathodes of titanium sheet (TS), nickel foam (NF) or carbon cloth (CC). Cu(II) reduction was similar to all materials (4.79-4.88mg/Lh) whereas CC exhibited the best Cd(II) reduction (5.86±0.25mg/Lh) and hydroge...

nt matter & 2012 0.1016/j.nanoen.2 thor. Tel.: +1 216 . [email protected] Abstract Nanomaterials with quasi-zero, one and two dimensionalities, including silicon nanoparticles, carbon nanotubes, titanium oxide particles and graphene flakes, have been incorporated into the conducting polymer polyaniline to form nanocomposite materials for making flexible supercapacitor sheets. Characterization of...

The dependence of grain orientation on stress-induced martensitic transformation in superelastic, polycrystalline Nickel-Titanium sheet was examined at the microstructural length scale. Full-field strains, indicative of transformation extent, were characterized in fields of view of nominally 100 μm x 100 μm using a custom combination of scanning electron microscopy with distortioncorrected digi...

In this work the biocompatibility of two vanadium-free Ti–Al–Nb alloys, Ti–15Al–33Nb and Ti–21Al–29Nb, was evaluated and compared to that for commercially pure titanium (CP Ti) and alumina (Al2O3). Fine particles were milled from sheet-processed material and implanted onto mice calvaria using an established animal model. Various stains, including methylene blue/acid fuchsin, TRAcP, and immunohi...

The present study investigates the unsteady, two dimensional, laminar flow of a nanofluid over a stretching sheet with thermal dispersion in the presence of MHD and variable suction is studied. Two water based nanofluids containing Copper Cu, Titanium dioxide TiO2 nanoparticles are considered in this study. Using the similarity transformations, the governing equations have been transformed into...