Detailed defect structure of dendrite formation was studied in order to connect the mesoscopic with the atomistic structure. It was demonstrated that twinning and stacking fault formation play a central role in the growth of electrodeposited Ag dendrites. The broad faces of Ag dendrites and the main trunk growth direction were found to be ((1) over bar 11) and [(1) over bar1 (2) over bar], respectively. Dendrite branches also formed and grew from the main trunk parallel to the [12 (1) over bar] and [(211) over bar] crystallographic directions. Twins and stacking faults were found to reside on the {111} crystallographic planes, as expected for a face centered cubic (FCC) Ag crystal. Using electron back scattered diffraction (EBSD) we found two variants of in-plane 60 degrees rotational twin domains in the ((1) over bar 11) broad dendrite surface plane. The intersections of twins and stacking faults with dendrite arm surfaces are perpendicular to the (112) arm growth directions. However,... occasionally twins on the {111} planes parallel to the (112) arm growth directions were also observed. Although defect assisted dendrite growth is facilitated by twinning and stacking fault formation on {111} planes, the growth directions of the trunk and branches are not of the (111) type, but rather close to (112). The (112) growth directions are maintained by breaking dendrite facets into thermodynamically stable 111 and 200 steps and structural ledges of different length.
Source:
Crystal Growth & Design, 2016, 16, 1, 467-474
Publisher:
Amer Chemical Soc, Washington
Funding / projects:
Serbian Academy of Sciences and Arts [F-141]
Office of Science, Office of Basic Energy Sciences, of the U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH11231]
TY - JOUR
AU - Radmilović, Vuk V.
AU - Kacher, Josh
AU - Ivanović, Evica
AU - Minor, Andrew M.
AU - Radmilović, Velimir R.
PY - 2016
UR - http://aspace.agrif.bg.ac.rs/handle/123456789/4146
AB - Detailed defect structure of dendrite formation was studied in order to connect the mesoscopic with the atomistic structure. It was demonstrated that twinning and stacking fault formation play a central role in the growth of electrodeposited Ag dendrites. The broad faces of Ag dendrites and the main trunk growth direction were found to be ((1) over bar 11) and [(1) over bar1 (2) over bar], respectively. Dendrite branches also formed and grew from the main trunk parallel to the [12 (1) over bar] and [(211) over bar] crystallographic directions. Twins and stacking faults were found to reside on the {111} crystallographic planes, as expected for a face centered cubic (FCC) Ag crystal. Using electron back scattered diffraction (EBSD) we found two variants of in-plane 60 degrees rotational twin domains in the ((1) over bar 11) broad dendrite surface plane. The intersections of twins and stacking faults with dendrite arm surfaces are perpendicular to the (112) arm growth directions. However, occasionally twins on the {111} planes parallel to the (112) arm growth directions were also observed. Although defect assisted dendrite growth is facilitated by twinning and stacking fault formation on {111} planes, the growth directions of the trunk and branches are not of the (111) type, but rather close to (112). The (112) growth directions are maintained by breaking dendrite facets into thermodynamically stable 111 and 200 steps and structural ledges of different length.
PB - Amer Chemical Soc, Washington
T2 - Crystal Growth & Design
T1 - Multiple Twinning and Stacking Faults in Silver Dendrites
EP - 474
IS - 1
SP - 467
VL - 16
DO - 10.1021/acs.cgd.5b01459
ER -
@article{
author = "Radmilović, Vuk V. and Kacher, Josh and Ivanović, Evica and Minor, Andrew M. and Radmilović, Velimir R.",
year = "2016",
abstract = "Detailed defect structure of dendrite formation was studied in order to connect the mesoscopic with the atomistic structure. It was demonstrated that twinning and stacking fault formation play a central role in the growth of electrodeposited Ag dendrites. The broad faces of Ag dendrites and the main trunk growth direction were found to be ((1) over bar 11) and [(1) over bar1 (2) over bar], respectively. Dendrite branches also formed and grew from the main trunk parallel to the [12 (1) over bar] and [(211) over bar] crystallographic directions. Twins and stacking faults were found to reside on the {111} crystallographic planes, as expected for a face centered cubic (FCC) Ag crystal. Using electron back scattered diffraction (EBSD) we found two variants of in-plane 60 degrees rotational twin domains in the ((1) over bar 11) broad dendrite surface plane. The intersections of twins and stacking faults with dendrite arm surfaces are perpendicular to the (112) arm growth directions. However, occasionally twins on the {111} planes parallel to the (112) arm growth directions were also observed. Although defect assisted dendrite growth is facilitated by twinning and stacking fault formation on {111} planes, the growth directions of the trunk and branches are not of the (111) type, but rather close to (112). The (112) growth directions are maintained by breaking dendrite facets into thermodynamically stable 111 and 200 steps and structural ledges of different length.",
publisher = "Amer Chemical Soc, Washington",
journal = "Crystal Growth & Design",
title = "Multiple Twinning and Stacking Faults in Silver Dendrites",
pages = "474-467",
number = "1",
volume = "16",
doi = "10.1021/acs.cgd.5b01459"
}
Radmilović, V. V., Kacher, J., Ivanović, E., Minor, A. M.,& Radmilović, V. R.. (2016). Multiple Twinning and Stacking Faults in Silver Dendrites. in Crystal Growth & Design
Amer Chemical Soc, Washington., 16(1), 467-474.
https://doi.org/10.1021/acs.cgd.5b01459
Radmilović VV, Kacher J, Ivanović E, Minor AM, Radmilović VR. Multiple Twinning and Stacking Faults in Silver Dendrites. in Crystal Growth & Design. 2016;16(1):467-474.
doi:10.1021/acs.cgd.5b01459 .
Radmilović, Vuk V., Kacher, Josh, Ivanović, Evica, Minor, Andrew M., Radmilović, Velimir R., "Multiple Twinning and Stacking Faults in Silver Dendrites" in Crystal Growth & Design, 16, no. 1 (2016):467-474,
https://doi.org/10.1021/acs.cgd.5b01459 . .
