Abstract The one-dimensional transient solidification of a binary alloy undergoing shrinkage is well-known as an invaluable benchmark for the testing numerical codes that model macrosegregation. Here, recent work considered small-time behaviour this problem extended until complete solidification, thereby determining solute profile across entire solidified domain. solution used initial condition...

We report the combinatorial and high-throughput optimization of improved ternary Pt alloy electrocatalysts for the oxidation of methanol for use in direct methanol fuel cell (DMFC) anodes. Following up on the discovery of a ternary Pt20Co60Ru20 catalyst with significantly improved electrocatalytic activity for methanol oxidation over standard Pt-Ru catalysts, we optimize the electrocatalytic ac...

A detailed study of the paramagnetic to ferromagnetic phase transition in the one-band Hubbard model in the presence of binary-alloy disorder is presented. The influence of the disorder (with concentrations x and 1-x of the two alloy ions) on the Curie temperature T(c) is found to depend strongly on electron density n. While at high densities, n>x, the disorder always reduces T(c); at low densi...

Ni-based superalloys are the important materials for gas turbines in advanced aeroplane engines . The addition of refractory elements to these superalloys, such as rhenium and tungsten, can significantly improve the hightemperature performance by so-called solid-solution hardening. Although the strengthening effect of refractory elements in Ni-based superalloys have been known for a long time, ...

The aim of this work is to elucidate the formation of the amorphous phase in the Cu-Zr binary alloy system. It was found that 1 mm diameter rods with a fully amorphous structure can be prepared in a relatively wide range of compositions. In contrast, the formation of 2 mm diameter rods was achieved only for the Cu64Zr36 alloy and in the range of Cu53Zr47 Cu50Zr50, which are compositions near th...