Time-lapse, three-dimensional in situ imaging of ice crystal growth in a colloidal silica suspension

  title={Time-lapse, three-dimensional in situ imaging of ice crystal growth in a colloidal silica suspension},
  author={Sylvain Deville and J{\'e}r{\^o}me Adrien and Eric Maire and Mario Scheel and Marco di Michiel},
  journal={Acta Materialia},
Abstract The freezing of colloidal suspensions is encountered in many natural and engineering processes such as the freezing of soils, food engineering and cryobiology. It can also be used as a bio-inspired, versatile and environmentally friendly processing route for porous materials and composites. Yet, it is still a puzzling phenomenon with many unexplained features, owing to the complexity of the system and the space and time scales at which the process should be investigated. This study… Expand
Multiphase imaging of freezing particle suspensions by confocal microscopy
Ice-templating is a well-established processing route for porous ceramics. Because of the structure/properties relationships, it is essential to better understand and control the solidificationExpand
Time-Lapse, in Situ Imaging of Ice Crystal Growth Using Confocal Microscopy
This work shows how it can use laser scanning confocal microscopy to follow in real-time the growth of smoothed and faceted ice crystals in zirconium acetate solutions, and precisely measure the lateral growth velocity of the crystals, a measure otherwise difficult to obtain. Expand
Investigating the Freezing of Colloids: Experimental Techniques to Probe Solidification Patterns, Crystal Growth, and Particle Movement
The freezing of colloids is a complex phenomenon, with multiple, interdependent parameters. A proper observation is thus often the first step towards a better understanding. Many concomitantExpand
In-situ X-Ray observations and thermal modeling of unidirectional and bidirectional freeze casting
  • Guang Yang, Fangzhou Li, +8 authors D. Lin
  • Materials Science
  • 2021
Abstract Freeze casting is a cost effective, efficient, and versatile technique capable of producing 3D structures with controlled pore shapes, orientation of crystals, and components' geometries inExpand
Understanding the Freezing of Colloidal Suspensions: Crystal Growth and Particle Redistribution
The solidification of colloidal suspensions is ubiquitous in nature and technology. Whereas we want to control the microstructure and architectures of materials obtained through freezing routes,Expand
Colloidal assembly by directional ice templating.
To understand the differences between isotropic and directional ice templating, the authors performed lattice simulations of a highly simplified model, where ice crystals grow at a constant rate to force clustering and ignore hydrodynamic interactions and ice growth instabilities. Expand
Phase‐Field Modeling of Microstructural Evolution by Freeze‐Casting
Freeze-casting has attracted great attention as a potential method for manufacturing bioinspired materials with excellent flexibility in microstructure control. The solidification of ice crystals inExpand
Ice-Templated Materials: Polymers, Ceramics, Metals and Their Composites
The freezing of colloids occurs in many natural and synthetic processes, from geophysics to food engineering and biology. In the last 15 years, a particular attention has been paid to materialsExpand
A temperature-controlled stage for laser scanning confocal microscopy and case studies in chemistry of materials
If confocal microscopy is an ubiquitous tool in life science, its applications in chemistry and materials science are still, in comparison, very limited. Of particular interest in these domains isExpand
Self-assembly of faceted particles triggered by a moving ice front.
This work elucidate the self-assembly mechanisms of faceted particles driven by ice growth by a combination of X-ray holotomography and discrete element modeling, providing insights into both the dynamics of self- assembly and their final packing. Expand


Particle-scale structure in frozen colloidal suspensions from small-angle x-ray scattering.
The results of experiments are presented in which the particles were concentrated into regions between ice dendrites forming a microscopic pattern of high- and low-particle-density regions, suggesting that the particle packing induced by freezing differs from that formed during equilibrium densification processes. Expand
Dynamics of the Freezing Front During the Solidification of a Colloidal Alumina Aqueous Suspension: In Situ X‐Ray Radiography, Tomography, and Modeling
Ice templating of colloidal suspension is gaining interest in material science because it offers the possibility to shape advanced materials, in particular porous ceramics. Recent investigations onExpand
In situ X-ray radiography and tomography observations of the solidification of aqueous alumina particle suspensions. Part I: Initial instants
This paper investigates by in situ high-resolution X-ray radiography and tomography the behavior of colloidal suspensions of alumina partic les during directional solidification by freezing. TheExpand
Structural properties of materials created through freeze casting
Upon freezing of an aqueous suspension of colloidal particles, ice platelets or dendrites with high aspect ratios are formed that engulf or reject the particles, depending on their size and theExpand
The kinetics of ice-lens growth in porous media
Abstract We analyse the growth rate of segregated ice (ice lenses) in freezing porous media. For typical colloidal materials such as soils we show that the commonly employed Clapeyron equation is notExpand
An optical‐axis freezing stage for laser‐scanning microscopy of broad ice–water interfaces
This article presents a method to view a dynamic ice interface along the axis of ice growth using a laser‐scanning microscope, and images of the interface morphology in water with solutes of interest to cryobiology illustrate the imaging capability. Expand
Ice-lens formation and geometrical supercooling in soils and other colloidal materials.
The proposed mechanism is in good agreement with experiments, in particular explaining ice-lens pattern formation and surges in heave rate associated with the growth of new lenses, and should be useful in the prediction of macroscopic frost-heave rates. Expand
In situ and real-time 3-D microtomography investigation of dendritic solidification in an Al-10 wt.% Cu alloy
The microstructural evolution of an Al–10 wt.% Cu alloy was investigated during solidification at constant cooling rate by in situ synchrotron X-ray microtomography with a resolution of 2.8 μm.Expand
X-ray radiography observations of columnar dendritic growth and constitutional undercooling in an Al–30wt%Cu alloy
Abstract In situ synchrotron X-ray radiography of columnar dendritic and eutectic growth under directional solidification of Al–30wt%Cu has been carried out with nominal spatial and temporalExpand
In situ synchrotron tomographic investigation of the solidification of an AlMg4.7Si8 alloy
The solidification sequence of an AlMg4.7Si8 alloy is imaged in situ by synchrotron microtomography. Tomograms with (1.4 μm)3/voxel have been recorded every minute while cooling the melt from 600 °CExpand