1 citations · 1 across the 5 of their papers we have counts for
5 papers
Viscoelasticity of a colloidal gel during dynamical arrest: evolution through the critical gel and comparison with a soft colloidal glass
Ajay Singh Negi, Carissa G. Redmon, Subramanian Ramakrishnan +1
We consider gelation of colloidal particles in suspension after cessation of shear flow. Particle aggregation is driven by a temperature-tunable attractive potential which controls…
Physical aging and relaxation of residual stresses in a colloidal glass following flow cessation
Ajay Singh Negi, Chinedum O. Osuji
Dilute Laponite suspensions in water at low salt concentration form repulsive colloidal glasses which display physical aging. This phenomenon is still not completely understood and…
Time resolved viscoelastic properties during structural arrest and aging of a colloidal glass
Ajay Singh Negi, Chinedum O. Osuji
Evolution of the energy landscape during physical aging of glassy materials can be understood from the frequency and strain dependence of the shear modulus but the non-stationary n…
Dynamics of a colloidal glass during stress-mediated structural arrest
Ajay Singh Negi, Chinedum O. Osuji
We employ parallel superposition rheology to study the dynamics of an aging colloidal glass in the presence of a mean field stress. Over a range of intermediate stresses, the loss…
Dynamics of Internal Stresses and Scaling of Strain Recovery in an Aging Colloidal Gel
Ajay Singh Negi, Chinedum O. Osuji
We monitor the relaxation of internal stresses in a fractal colloidal gel on cessation of flow and find a weak power law decay, over 5 decades of time where $α\ap…