D. Holec, Ferenc Tasnadi, P. Wagner, M. Friak, J. Neugebauer, P. H. Mayrhofer and J. Keckes, Macroscopic elastic properties of textured ZrN-AlN polycrystalline aggregates: From ab initio calculations to grainscale interactions, 2014, Physical Review B. Condensed Matter and Materials Physics, (90), 18, 184106. http://dx.doi.org/10.1103/PhysRevB.90.184106 Copyright: American Physical Society http...

Deformable, spherical aggregates of metal nanoparticles connected by long-chain dithiol ligands self-assemble into nanostructured materials of macroscopic dimensions. These materials are plastic and moldable against arbitrarily shaped masters and can be thermally hardened into polycrystalline metal structures of controllable porosity. In addition, in both plastic and hardened states, the assemb...

Bulk B-C-N materials were synthesized under static high thermobaric conditions (20 GPa and 2,000 °C) in a multianvil apparatus from a polymer derived t-BC1.97N ceramic. The bulk samples were characterised using X-ray synchrotron radiation and analytical transmission electron microscopy in combination with electron energy loss spectroscopy. Polycrystalline B-C-N materials with a cubic type struc...

A number of molecular crystal structures of two families of organic compounds pharmaceutically important heterocycles and dyes successfully solved from various powder diffraction data are presented. The obtained results demonstrate the power and reliability of powder diffraction methods in their applications to characterization solid organic materials which can only be prepared in polycrystalli...

Texture mapping system with energy dispersive X-ray diffraction method has been newly developed. Total time of measurement was reduced more than half by the adoption of a fast data transmission interface. Some examples are demonstrated in order to show the performance of the system. This approach is suitable for the study of local inhomogeneities of texture, such as colonies, in polycrystalline...

with the perovskite structure and with the trivalent cation (M) substitution at the B-site to introduce oxygen vacancies. The high affinity for hydrogen ions (H) is advantageous for protonic transport, but it increases the reactivity toward water (H2O) and carbon dioxide (CO2), which can lead to premature membrane failure. In addition, there are considerable technological challenges related to ...

We present a comparative study of thermomechanical properties of nano-polycrystalline nickel (nano-Ni) and micrometer-polycrystalline nickel (micron-Ni) by in situ high pressure-temperature (P-T) diffraction experiments. The yield strength of 2.35 GPa for the nano-Ni measured under high-pressure triaxial compression is more than three times that of the micron-Ni value. Contrary to tensile exper...