The in situ observation of faceted dendrite growth during the directional solidification of GaSb

2019 ◽  
Vol 168 ◽  
pp. 56-60 ◽  
Author(s):  
Keiji Shiga ◽  
Masato Kawano ◽  
Kensaku Maeda ◽  
Haruhiko Morito ◽  
Kozo Fujiwara
Keyword(s):  
Directional Solidification ◽  
Dendrite Growth ◽  
In Situ Observation ◽  
Faceted Dendrite

In situ observation of Si faceted dendrite growth from low-degree-of-undercooling melts

2008 ◽  
Vol 56 (11) ◽  
pp. 2663-2668 ◽  
Author(s):  
Kozo Fujiwara ◽  
Kensaku Maeda ◽  
Noritaka Usami ◽  
Gen Sazaki ◽  
Yoshitaro Nose ◽  
...  
Keyword(s):  
Dendrite Growth ◽  
In Situ Observation ◽  
Low Degree ◽  
Faceted Dendrite

In Situ Observation of Directional Solidification in High Gravity

1997 ◽  
pp. 93-108
Author(s):  
Y. Inatomi ◽  
O. Kitajima ◽  
W. Huang ◽  
K. Kuribayashi
Keyword(s):  
Directional Solidification ◽  
In Situ Observation ◽  
High Gravity

In situ observation of interaction between grain boundaries during directional solidification of Si

2018 ◽  
Vol 148 ◽  
pp. 37-41 ◽  
Author(s):  
Lu-Chung Chuang ◽  
Kensaku Maeda ◽  
Haruhiko Morito ◽  
Keiji Shiga ◽  
Wolfram Miller ◽  
...  
Keyword(s):  
Grain Boundaries ◽  
Directional Solidification ◽  
In Situ Observation

scholarly journals A zone melting device for the in situ observation of directional solidification using high-energy synchrotron x rays

2020 ◽  
Vol 91 (9) ◽  
pp. 093901
Author(s):  
C. Gombola ◽  
G. Hasemann ◽  
A. Kauffmann ◽  
I. Sprenger ◽  
S. Laube ◽  
...  
Keyword(s):  
Directional Solidification ◽  
High Energy ◽  
Zone Melting ◽  
In Situ Observation ◽  
X Rays

In-situ observation of solid-liquid interface during directional solidification of succinonitrile and pivalic acid

2005 ◽  
Vol 16 (1-4) ◽  
pp. 107-110
Author(s):  
A. P. Shpak ◽  
O. P. Fedorov ◽  
E. L. Zhivolub ◽  
Y. J. Bersudskyy ◽  
O. V. Shuleshova
Keyword(s):  
Directional Solidification ◽  
Pivalic Acid ◽  
Liquid Interface ◽  
In Situ Observation ◽  
Solid Liquid Interface ◽  
Solid Liquid

scholarly journals In situ observation of cracking and self-healing of solid electrolyte interphases during lithium deposition

2020 ◽  
Author(s):  
Tingting Yang ◽  
Hui Li ◽  
Yongfu Tang ◽  
Jingzhao Chen ◽  
Hongjun Ye ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Dendrite Growth ◽  
In Situ Observation ◽  
Self Healing ◽  
Directional Growth ◽  
Transmission Electron ◽  
In Situ Observations ◽  
Li Batteries

Abstract The growth of lithium (Li) whiskers is detrimental to Li batteries. However, it remains a challenge to directly track Li whisker growth. Here we report in situ observations of electrochemically induced Li deposition under a CO2 atmosphere inside an environmental transmission electron microscope. We find that the morphology of individual Li deposits is strongly influenced by the competing processes of cracking and self-healing of the solid electrolyte interphase (SEI). When cracking overwhelms self-healing, the directional growth of Li whiskers predominates. In contrast, when self-healing dominates over cracking, the isotropic growth of round Li particles prevails. The Li deposition rate and SEI constituent can be tuned to control the Li morphologies. We reveal a new “weak-spot” mode of Li dendrite growth, which is attributed to the operation of the Bardeen-Herring growth mechanism in the whisker’s cross section. This work has implications for the control of Li dendrite growth in Li batteries.

scholarly journals Cellular Automaton Modeling of Silicon Facet Formation during Directional Solidification

Crystals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 399
Author(s):  
Jia Wang ◽  
Ri Li ◽  
Ning Li ◽  
Wenbo Yan ◽  
Wang Ma ◽  
...  
Keyword(s):  
Cellular Automaton ◽  
Directional Solidification ◽  
Interfacial Energy ◽  
Model Simulation ◽  
Negative Temperature ◽  
In Situ Observation ◽  
Heat Accumulation ◽  
Equilibrium Shapes ◽  
Facet Formation

Silicon facet formation during directional solidification is simulated by cellular automaton (CA) modeling in which anisotropic interfacial energy and kinetics are considered. Numerical simulations were performed with different anisotropy strengths of interfacial energy and they show good agreement with analytical equilibrium shapes obtained by the Gibbs-Thomson equation. We also compare our results of anisotropic kinetics with in situ observation experiments and the results of the phase model to verify the accuracy of our model. Simulation results of facet formation show that perturbation is promoted to the corner by the negative temperature gradient of the interface and the heat accumulation location leads to the disappearance of small corners.

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