Atomic scale structure and chemical composition across order-disorder interfaces.
Through a combination of aberration-corrected high-resolution scanning transmission electron microscopy and three-dimensional atom probe tomography, the true atomic-scale structure and change in chemical composition across the complex order-disorder interface in a metallic alloy has been determined. The study reveals the presence of two interfacial widths, one corresponding to an order-disorder transition, and the other to the compositional transition across the interface, raising fundamental questions regarding the definition of the interfacial width in such systems.
Srinivasan
R
R
Center for the Accelerated Maturation of Materials, Department of Materials Science and Engineering, The Ohio State University, Columbus, Ohio 43210, USA.
Banerjee
R
R
Hwang
J Y
JY
Viswanathan
G B
GB
Tiley
J
J
Dimiduk
D M
DM
Fraser
H L
HL