Fragmentation and Limits to Dynamical Scaling in Viscous Coarsening: An Interrupted in situ X-Ray Tomographic Study

Abstract

X-Ray microtomography was used to follow the coarsening of the structure of a ternary silicate glass experiencing phase separation in the liquid state. The volumes, surfaces, mean and Gaussian curvatures of the domains of minority phase were measured after reconstruction of the 3D images and segmentation. A linear growth law of the characteristic length scale $\ell \sim t$ was observed. A detailed morphological study was performed. While dynamical scaling holds for most of the geometrical observables under study, a progressive departure from scaling invariance of the distributions of local curvatures was evidenced. The latter results from a gradual fragmentation of the structure in the less viscous phase that also leads to a power-law size distribution of isolated domains.

References in corpus (5)

• Mayavi: a package for 3D visualization of scientific data
• Intermittent dynamics and logarithmic domain growth during the spinodal decomposition of a glass-forming liquid
• Domain growth morphology in curvature driven two dimensional coarsening
• Effects of Density Conservation and Hydrodynamics on Aging in Nonequilibrium Processes
• Quantitative AFM analysis of phase separated borosilicate glass surfaces

Cited by in corpus (15)

• Probing colloidal gels at multiple lengthscales: the role of hydrodynamics
• Real Space Analysis of Colloidal Gels: Triumphs, Challenges and Future Directions
• Local structure of percolating gels at very low volume fractions
• Direct Imaging of Contacts and Forces in Colloidal Gels
• Phase-ordering kinetics in the Allen-Cahn (Model A) class: universal aspects elucidated by electrically-induced transition in liquid crystals
• Realistic Tunneling States for the Magnetic Effects in Non-Metallic Real Glasses
• Topological symmetry breaking in viscous coarsening
• Slicing the $3d$ Ising model: critical equilibrium and coarsening dynamics
• Aging Phenomena during Phase Separation in Fluids: Decay of autocorrelation for vapor-liquid transitions
• On self similarity and coarsening rate of a convecting bicontinuous phase separating mixture: effect of the viscosity contrast
• Exploring structural inhomogeneities in glasses during cavitation
• Kinetics of coarsening have dramatic effects on the microstructure: self-similarity breakdown induced by viscosity contrast
• Steady states and coarsening in one-dimensional driven Allen-Cahn system
• Anisotropic viscoelastic phase separation in polydisperse hard rods: non-sticky gelation
• Numerical study of buoyancy induced arrest of viscous coarsening