Nb3Al formation in sputter-deposited Nb/Al multilayer samples

Abstract

The critical current density of powder metallurgy processed wires is determined in part by the extent of the A 15 phase formation in the vicinity of the Nb/ Al interface.A series of multi-layered samples was made to simulate the reactions in the P/M wires.Transmission electron microscopy was used to study the reactions between the multi-

An Overview of Nano Multilayers as Model Systems for Developing Nanoscale Microstructures

“…Figure 6 B uses the same colors of each data point to attribute the datum to a specific NMM structure (bcc/fcc, fcc/fcc, hcp/hcp, etc.) from the present study as well as the other previously identified studies from literature [ 17 , 18 , 19 , 20 , 52 , 63 , 65 , 66 , 67 , 68 , 69 ]. For a given subset of NMM structures (e.g., fcc/bcc), a more pronounced trend of decreasing normalized layer breakdown temperature with increasing surface energy mismatch is evident.…”

“…Colors of the data points correspond to NMM alternating structure (e.g., bcc/fcc, fcc/bcc, etc.). from this study and other studies [ 17 , 18 , 19 , 20 , 52 , 63 , 65 , 66 , 67 , 68 , 69 ].…”

“…To visualize experimental observations over many binary NMM systems, the simplified contributions of geometric and energetic drivers are illustrated in Figure 6 . In these plots, NMM structures from the present study and from literature across many material systems [ 17 , 18 , 19 , 20 , 52 , 63 , 65 , 66 , 67 , 68 , 69 ] are presented and are tabulated in Supplementary Table S1 . All systems shown are binary, non-equiatomic (>60 at.% base element) nano-multilayered films subjected to heat treatments.…”