Evaluation of fcc-Al volume fraction by DSC and XRD experimental methods can lead to an important underestimation by comparison with 3DAPFIM and TEM observations. It is shown that the nature of the amorphous structure and the change of chemical composition during the nanocrystallization process can greatly affect the measurements. This observation can be related to the unusual nucleation and growth kinetic process, which remains still difficult to fit using classical model in such a nanocomposite. These considerations must be taken into account for a correct calculation and the methods used are revisited for a better evaluation of the volume fraction.
|Journal||Materials Science Forum|
|Publication status||Published - 1 Jan 2000|