Connectivity percolation in suspensions of hard platelets

Details Connectivity percolation in suspensions of hard platelets Connectivity percolation in suspensions of hard platelets

2012-04-13

arxiv.org/abs/1204.2961v1

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

We present a study on connectivity percolation in suspensions of hard platelets by means of Monte Carlo simulation. We interpret our results using a contact-volume argument based on an effective single--particle cell model. It is commonly assumed that the percolation threshold of anisotropic objects scales as their inverse aspect ratio. While this rule has been shown to hold for rod-like particles, we find that for hard plate-like particles the percolation threshold is non-monotonic in the aspect ratio. It exhibits a shallow minimum at intermediate aspect ratios and then saturates to a constant value. This effect is caused by the isotropic-nematic transition pre-empting the percolation transition. Hence the common strategy to use highly anisotropic, conductive particles as fillers in composite materials in order to produce conduction at low filler concentration is expected to fail for plate-like fillers such as graphene and graphite nanoplatelets.

Affiliated with

Also associated with

No associations

Rating

Connectivity percolation in suspensions of hard platelets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Connectivity percolation in suspensions of hard platelets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Connectivity percolation in suspensions of hard platelets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-143962