Icosahedra clustering and short range order in Ni-Nb-Zr amorphous membranes

Tuesday, May 15, 2018

New research! "Icosahedra clustering and short range order in Ni-Nb-Zr amorphous membranes" describes breakthrough research conducted with atom probe tomography.

From the abstract:

 

"Crystalline Pd/Pd-Ag membranes are widely used for hydrogen separation from CO2 and other gases in power generation applications. To substitute these high cost noble metal alloy membranes, the Ni-Nb-Zr amorphous alloys are being developed that exhibit relatively high permeability of hydrogen between 200–400 °C. Atom probe tomography (APT) experiments performed on these ribbons revealed nm-scale Nb-rich and Zr-rich regions (clusters) embedded in a ternary matrix, indicating phase separation within the Ni-Nb-Zr amorphous alloy."

 

Read the full paper here.