Bridging in Colloidal Sediments
Bridging in Colloidal Sediments
- Event time: 1:00pm
- Event date: 25th October 2004
- Speaker: Matt Jenkins (University of Edinburgh)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Event details
The hard-sphere system widely used in this group can be made large enough for study by light microscopy. At this size (radius around 1 µm) they sediment rapidly to form solid ''plugs'' which are generally thought to be ''randomly close packed'' (RCP). I will discuss RCP, and show that at least some sediments do not appear to arrange themselves this way. One possible explanation involves an analysis borrowed from simulations of granular matter (''bridging''). I will attempt to convince you that an explanation of this kind would carry some significance, and describe the usefulness of bridging as means of distinguishing between packings.
About Condensed Matter lunchtime seminars
This is a weekly series of informal talks given primarily by members of the institute of condensed matter and complex systems, but is also open to members of other groups and external visitors. The aim of the series is to promote discussion and learning of various topics at a level suitable to the broad background of the group. Everyone is welcome to attend..