E. Liotti

TL;DR: An in situ technique for studying the effect of a pulsed electromagnetic field on dendrite fragmentation behavior based on synchrotron X-ray imaging has been developed, involving the passage of an oscillating current through a foil specimen placed in a static magnetic field as mentioned in this paper.

TL;DR: It is shown that crystallization occurred in temporal and spatial bursts associated with a solute-suppressed nucleation zone and confirmed the efficiency of extrinsic grain refiners and gave support to the widely assumed free growth model of heterogeneous nucleation.

TL;DR: In this article, the spatial and temporal distribution of dendrite fragmentation, without and with an applied pulsed electromagnetic field (PEMF) and in different solidification directions, was investigated.

TL;DR: The High-Energy X-ray Imaging Technology (HEXITEC) detector system for spectroscopic imaging of hard X-rays and γ-rays has been developed by the Science & Technology Facilitie... as discussed by the authors.

TL;DR: In this paper, the formation of primary Fe-rich intermetallic compound crystals and the effect of TiB2 and TiC inoculation during solidification of a hypereutectic Al-Fe alloy has been investigated both horizontal, near isothermal conditions and vertical, directional thermal gradient conditions were studied using laboratory and synchrotron X-ray radiography.