Time-rate-transformation framework for targeted assembly of short-range attractive colloidal suspensions
Name
1-s2.0-S2590049819301006-main.pdf
Description
Published version
Size
1.52 MB
Format
Adobe PDF
Checksum (MD5)
c3d918a01eba63c7b1e65bc4c7667daa
Author(s)
Jamali, Safa
Armstrong, Robert C
McKinley, Gareth H
Date Issued
2020
Journal
Materials Today Advances
Publisher
Elsevier BV
Version
Final published version
Abstract
© 2019 The Authors The aggregation of attractive colloids has been extensively studied from both theoretical and experimental perspectives as the fraction of solid particles is changed, and the range, type, and strength of attractive or repulsive forces between particles varies. The resulting gels, consisting of disordered assemblies of attractive colloidal particles, have also been investigated with regards to percolation, phase separation, and the mechanical characteristics of the resulting fractal networks. Despite tremendous progress in our understanding of the gelation process, and the exploration of different routes for arresting the dynamics of attractive colloids, the complex interplay between convective transport processes and many-body effects in such systems has limited our ability to drive the system toward a specific configuration. Here, we study a model attractive colloidal system over a wide range of particle characteristics and flow conditions undergoing aggregation far from equilibrium. The complex multiscale dynamics of the system can be understood using a time-rate-transformation diagram adapted from understanding of materials processing in block copolymers, supercooled liquids, and much stiffer glassy metals to direct targeted assembly of attractive colloidal particles.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
MIT Energy Initiative
Hatsopoulos Microfluids Laboratory (Massachusetts Institute of Technology)
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.MTADV.2019.100026
