Concept
Compacité (cristallographie)
Publications associées (45)
Theory of screw dislocation strengthening in random BCC alloys from dilute to "High-Entropy" alloys
William Curtin, Francesco Maresca
Random body-centered-cubic (BCC) "High Entropy" alloys are a new class of alloys, some having high strength and good ductility at room temperature and some having exceptional high-temperature strength. There are no theories of strengthening of screw disloc ...
PERGAMON-ELSEVIER SCIENCE LTD2020Mechanistic origin of high strength in refractory BCC high entropy alloys up to 1900K
William Curtin, Francesco Maresca
The body centered cubic (BCC) high entropy alloys (HEAs) MoNbTaW and MoNbTaVW show exceptional strength retention up to 1900K. The mechanistic origin of the retained strength is unknown yet is crucial for finding the best alloys across the immense space of ...
PERGAMON-ELSEVIER SCIENCE LTD2020Discovering hierarchies among intermetallic crystal structures
The crystal structure of a compound plays an important role in determining its properties. Here we analyze over 4000 intermetallic compounds, and we identify a hierarchical relationship between their crystal structures. By considering each intermetallic co ...
2020New refinement of the crystal structure of Zn(NH3)(2)Cl-2 at 100 K
The crystal structure of [ZnCl2(NH3)(2)], diamminedichloridozinc, was reinvestigated at low temperature, revealing the positions of the hydrogen atoms and thus a deeper insight into the hydrogen-bonding scheme in the crystal packing. In comparison with pre ...
2019Connecting the Simpler Structures to Topologically Close-Packed Phases
Pathways connecting dissimilar crystal structures are fundamental to our understanding of structural phase transitions. In this Letter, we report on a new pathway connecting the hexagonal close-packed crystal structure to a hierarchy of topologically close ...
APS2018