Niersbach, Till and Kolbe, Matthias and Becker, Maike and Kargl, Florian (2022) Twinned dendrites in CrB-structured intermetallic NiGd. IOP Conference Series : Materials Science and Engineering. Institute of Physics (IOP) Publishing. ISSN 1757-8981.
Full text not available from this repository.
Abstract
The formation of twinned dendrites was investigated in orthorhombic CrB-structured NiGd. A NiGd droplet embedded in borosilicate glass-flux was processed by differential scanning calorimetry. A small undercooling of ≈ 20 °C was reached and a cross-section of the solidified sample was analyzed with EBSD. A twinned dendrite is found, that exhibits a twin boundary in its center, both parts sharing a direction and a misorientation angle of 40° between its two parts. The present findings are in agreement with model predictions for CrB-structured alloy solidification based on the investigation of deeply undercooled and homogeneously nucleating NiZr. The present investigation on NiGd serves as a first important step to validate the model's predictions. Due to the observation of twinned dendrites at small undercoolings, the present study may further serve as a first-step to extend the model to heterogeneous growth regimes.
Item URL in elib: | https://elib.dlr.de/188932/ | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Article | |||||||||||||||
Title: | Twinned dendrites in CrB-structured intermetallic NiGd | |||||||||||||||
Authors: |
| |||||||||||||||
Date: | 2022 | |||||||||||||||
Journal or Publication Title: | IOP Conference Series : Materials Science and Engineering | |||||||||||||||
Refereed publication: | Yes | |||||||||||||||
Open Access: | Yes | |||||||||||||||
Gold Open Access: | Yes | |||||||||||||||
In SCOPUS: | No | |||||||||||||||
In ISI Web of Science: | No | |||||||||||||||
Publisher: | Institute of Physics (IOP) Publishing | |||||||||||||||
ISSN: | 1757-8981 | |||||||||||||||
Status: | Accepted | |||||||||||||||
Keywords: | Nucleation ; Twinning ; Dendrite ; Quasicrystal ; NiZr ; NiGd ; grain boundary ; crystal growth ; CrB ; orthorhombic ; undercooling | |||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
HGF - Program: | Space | |||||||||||||||
HGF - Program Themes: | Research under Space Conditions | |||||||||||||||
DLR - Research area: | Raumfahrt | |||||||||||||||
DLR - Program: | R FR - Research under Space Conditions | |||||||||||||||
DLR - Research theme (Project): | R - User Centre Research under Space Conditions | |||||||||||||||
Location: | Köln-Porz | |||||||||||||||
Institutes and Institutions: | Institute of Materials Physics in Space | |||||||||||||||
Deposited By: | Niersbach, Till | |||||||||||||||
Deposited On: | 17 Oct 2022 10:25 | |||||||||||||||
Last Modified: | 17 Oct 2022 10:25 |
Repository Staff Only: item control page