Structural and thermal study of nanostructured GaSb alloy prepared by mechanical alloying

The nanostructured cubic GaSb phase was produced after 2 h of milling by mechanical alloying (MA). Structural and thermal properties from the as-milled and annealed samples were investigated using X-ray diffraction (XRD), differential scanning calorimetry (DSC) and open photoacoustic cell (OPC) techniques. The measured XRD pattern for the annealed sample showed the same cubic GaSb phase more antimony segregation. The thermal diffusivity, surface recombination velocity, diffusion coefficient, and relaxation time values were obtained for both samples by analyzing the OPC photoacoustic data.