The phase structures and hydrogen storage properties of a Ti Zr V Ni alloy are studied. It is found that this alloy consists of a 0.7 0.2 0.1 matrix and a secondary phase. The matrix is a B2-type compound with bcc structure and the secondary phase is a C14-type Laves phase with hexagonal structure. This alloy electrode has a larger charge–discharge capacity than stoichiometric TiNi electrodes b...

I. Szurman, R. Kocich, M. Kursa, VŠB – Technical University of Ostrava, Faculty of Metallurgy and Material Engineering, Ostrava – Poruba, Czech Republic The presented work is focused on the determination of elastic constants of selected alloys of the systems Ni-Ti and Ni-Ti-Cu with use of ultrasonic methods. Sample preparation was carried out using VIM in graphite crucible in combination with p...

The process of direct two-proton decay of nuclei with Z 22-28 on the proton drip line is considered. On the basis of new Od3t2 Offi2 -shell-model mass extrapolations, '9Ti, 42Cr, 45Fe, Ni, and Ni are found to be bound to single-proton decay but unbound to two-proton decay. New estimates of the spectroscopic factors and lifetimes have been made. The decays of Ti, Fe, and Ni are found to be promi...

In this work, the characterization of the assembly of a steel shaft into a γ-TiAl part for turbocharger application, obtained using Electron Beam Welding (EBW) technology with a Ni-based filler, was carried out. The Ti-48Al-2Nb-0.7Cr-0.3Si (at %) alloy part was produced by Electron Beam Melting (EBM). This additive manufacturing technology allows the production of a lightweight part with comple...

U Un ni iv ve er rs si it tà à d de eg gl li i S St tu ud di i d di i M Mi il la an no o – – B Bi ic co oc cc ca a D Di ip pa ar rt ti im me en nt to o d di i I In nf fo or rm ma at ti ic ca a, , S Si is st te em mi is st ti ic ca a e e C Co om mu un ni ic ca az zi io on ne e L La ab bo or ra at to or ri io o d di i T Te es st t e e A

We present a Multi-State Time Del ay Neural Network (MS-TDNN) for speaker-i ndependent, connected l etter recogni ti on. Our MS-TDNNachi eves 98. 5/92.0% word accuracy on speaker dependent/i ndependent Engl i sh l etter tasks[7, 8]. In thi s paper we wi l l summari ze several techni ques to improve (a) conti nuous recogni ti on performance, such as sentence l evel trai ni ng, and (b) phoneti c ...

The output energy dependence of high repetition rate grazing incidence pumped Ni-like Mo, Ni-like Ag, and Ne-like Ti transient collisional soft x-ray lasers on the duration of the pump pulse was studied combining experiments and model simulations. Lasing is observed to occur for a wide range of pump pulse widths e.g., 2 to 18 ps for Ni-like Ag , with maximum output occurring for pump pulses of ...

The effect of microwave (MW) treatment to improve the adhesion of carbon nanotubes (CNTs) to a Ni/Ti/Au/SiO2/Si substrate was examined. CNTs were synthesized at a low temperature (400 C) by thermal chemical vapor deposition to avoid metal peeling. Results demonstrated that nearly 100% of MW-treated CNTs remained on the substrates even after sonication in a buffer solution. This was a significan...