| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 10014 | |
| Number of page(s) | 4 | |
| Section | Experimental Methods for Granular Mechanics | |
| DOI | https://doi.org/10.1051/epjconf/202534010014 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534010014
Characterisation of metal particles in porous sand using spectral induced polarisation
1 University of New South Wales, Sydney, Australia
2 The University of Queensland, Brisbane, Australia
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
** e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
*** e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
**** e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
† e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 1 December 2025
Abstract
The growing global demand of rare earth materials and efficient metal recovery techniques from natural resources highlight the significance of advanced methods for identifying and characterising metallic mineral in complex porous matrix. The study aims to characterise metal particles captured in a porous sand matrix using Spectral Induced Polarisation (SIP) method, mainly focusing on the sensitivity of SIP to variations in metal content. An experimental setup was designed to perform SIP measurements on pyrite-sand mixtures, specifically aimed at capturing the complex conductivity of the samples. This setup incorporated a custom-designed cup equipped with four embedded electrodes, facilitating four-point impedance measurements essential for analysing complex conductivity responses. Experiments were performed on sand, mixed with 3 distinct pyrite concentrations. All the measurements were performed three times to comment on the measurement variability. The SIP responses were found to vary with the concentration of pyrite particles. The results suggest that SIP is a promising method for identifying and measuring metal inclusions in porous geological materials.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.