| Title |
Pressure dependence of the electrical transport in granular materials
|
|---|---|
| Published in |
The European Physical Journal E, May 2017
|
| DOI | 10.1140/epje/i2017-11543-3 |
| Pubmed ID | |
| Authors |
M. Creyssels, C. Laroche, E. Falcon, B. Castaing |
| Abstract |
We report on systematic measurements of the electrical resistance of one- and three-dimensional (1D and 3D) metallic and oxidized granular materials under uni-axial compression. Whatever the dimension of the packing, the resistance follows a power law versus the pressure ([Formula: see text]), with an exponent [Formula: see text] much larger than the ones expected either with elastic or plastic contact between the grains. A simple model based on a statistical description of the micro-contacts between two grains is proposed. It shows that the strong dependence of the resistance on the pressure applied to the granular media is a consequence of large variabilities and heterogeneities present at the contact surface between two grains. Then, the effect of the three-dimensional structure of the packing is investigated using a renormalization process. This allows to reconcile two extreme approaches of a 3D lattice of widely distributed resistances: the effective medium and the percolation theories. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 6 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 6 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 3 | 50% |
| Professor | 1 | 17% |
| Professor > Associate Professor | 1 | 17% |
| Unknown | 1 | 17% |
| Readers by discipline | Count | As % |
|---|---|---|
| Engineering | 2 | 33% |
| Physics and Astronomy | 1 | 17% |
| Chemical Engineering | 1 | 17% |
| Unknown | 2 | 33% |
Attention Score in Context
This research output has an Altmetric Attention Score of 10. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 11 June 2017.
All research outputs
#3,653,098
of 25,539,438 outputs
Outputs from The European Physical Journal E
#129
of 737 outputs
Outputs of similar age
#62,921
of 325,852 outputs
Outputs of similar age from The European Physical Journal E
#4
of 11 outputs
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