Jamming phase diagram for attractive particles

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Original Entry: Nick Chisholm, AP 225, Fall 2009

General Information

Authors: V. Trappe, V. Prasad, Luca Cipelletti, P.N. Segre, and D. A. Weitz

Publication: Nature 411 772-775 (2001)

Soft Matter Keywords

Colloid, Elastic Modulus, Jamming Transition, Stress, Viscosity

Summary

In this article, the authors present experimental evidence supporting theoretical proposals suggesting that a jamming phase diagram could be used in order to describe attractive particle systems, where the attractive interactions play a role similar to that of confining pressure. The fluid-to-solid transition of weakly attractive colloid particles is studied in detail, and the results conclude that they undergo a similar gelation behavior (when compared to granular media, colloidal suspensions, and molecular systems which are described by jamming phase diagrams) with increasing concentration and decreasing thermalization or stress. The authors thus claim that their results support the idea of a jamming phase diagram for attractive colloid particles, providing a unifying link between the glass transition, gelation, and aggregation.

Soft Matter Discussion

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Figure 1, taken from [1].


Reference

[1] V. Trappe, V. Prasad, Luca Cipelletti, P.N. Segre, and D. A. Weitz, "Jamming phase diagram for attractive particles," Nature 411 772-775 (2001).