In this paper the feasibility of NbAl3/Al2O3 nanocomposite formation through mechanochemical reaction between Al and Nb2O5 and the effect of mechanical activation on the kinetic and reaction mechanism were investigated. Structural and phase evolution during mechanical alloying were studied by employing transmission electron microscopy (TEM)...

This paper provides a comparative analysis of five algorithms for determining the peak position in a laser ranging system to sub-pixel accuracy. The exercise was carried out in order to determine the most suitable method in terms of accuracy and robustness, for determining the location of the peak of an observed laser stripe to sub-pixel resolution.

Objective(s): First-principles calculations have been carried out to investigate the interaction of aspirin molecule with nitrogen-doped TiO2 anatase nanoparticles using the density functional theory method in order to fully exploit the biosensing capabilities of TiO2 particles. Methods: For this purpose, we have mainly studied the a...

We present three new hybrid copper(II) chloride layered perovskites of generic composition ACuCl4 or A2CuCl4, which exhibit distinct structure types. (m-PdH2)CuCl4 (m-PdH22+ = protonated m-phenylenediamine) adopts a Dion-Jacobson (DJ)-like perovskite type and exhibits very large axial thermal contraction effect upon heating, as revealed via variable-temperature synchrotron X-ray powder diffract...

Interface-type valence change memories (VCMs) are exciting candidates for multilevel storage in resistive random access (RRAM) and as artificial synapses neuromorphic computing. Several materials have been proposed VCM and, depending on the electrodes of choice, different switching mechanisms take place leading to resistance. Here, focus is La0.8Sr0.2MnO3–δ (LSM) perovskite particularly, role i...

Carbon disulfide is an archetypal double-bonded molecule belonging to the class of group IV–group VI, AB2 compounds. It widely believed that, upon compression several GPa at room temperature and above, a polymeric chain type (−(C═S)–S−)n, named Bridgman’s black polymer, will form. By combining optical spectroscopy synchrotron X-ray diffraction data with ab initio simulations, we demonstrate tha...

We report a joint experimental and theoretical study of the low-pressure phase α′-Ga2S3 under compression. The structural, vibrational, topological electronic properties have been evaluated to reveal relevance vacancy channels single double lone electron pairs in pressure behaviour this system.