Header logo is pi

Thermal Effects on the Crystallization Kinetics, and Interfacial Adhesion of Single-Crystal Phase-Change Gallium

2020

Article

pi


Although substrates play an important role upon crystallization of supercooled liquids, the influences of surface temperature and thermal property have remained elusive. Here, the crystallization of supercooled phase‐change gallium (Ga) on substrates with different thermal conductivity is studied. The effect of interfacial temperature on the crystallization kinetics, which dictates thermo‐mechanical stresses between the substrate and the crystallized Ga, is investigated. At an elevated surface temperature, close to the melting point of Ga, an extended single‐crystal growth of Ga on dielectric substrates due to layering effect and annealing is realized without the application of external fields. Adhesive strength at the interfaces depends on the thermal conductivity and initial surface temperature of the substrates. This insight can be applicable to other liquid metals for industrial applications, and sheds more light on phase‐change memory crystallization.

Author(s): Yunusa, Muhammad and Lahlou, Aliénor and Sitti, Metin
Journal: Advanced Materials
Year: 2020
Publisher: Wiley Online Library

Department(s): Physical Intelligence
Bibtex Type: Article (article)
Paper Type: Journal

BibTex

@article{yunusa2020thermal,
  title = {Thermal Effects on the Crystallization Kinetics, and Interfacial Adhesion of Single-Crystal Phase-Change Gallium},
  author = {Yunusa, Muhammad and Lahlou, Ali{\'e}nor and Sitti, Metin},
  journal = {Advanced Materials},
  publisher = {Wiley Online Library},
  year = {2020}
}