Special Issue "Electrical and Mechanical Properties of Geomaterials"
Deadline for manuscript submissions: 15 July 2020.
Interests: electrical-dielectric properties of minerals and rocks at high temperatures or pressures, acoustic emissions from rocks under mechanical stress, thermodynamic properties of point defects
In this Special Issue, we aspire to focus on recent research in the field of geomaterials (rocks, minerals, soils, concrete, etc.), a class of materials of great importance, both from scientific and technological points of view. Geomaterials have exhibited a long-standing interest to the scientific community due to their diverse fields of applications, from the construction industry to environmental remediation and implications for processes in Earth’s interior. Their study is based on theoretical and experimental methods from solid state physics and materials science in general, under different scales of investigation (nano- to macro-scale).
The electrical and mechanical behavior of geomaterials is quite complex due to the number of parameters affecting them, such as mineralogical composition, porosity, saturation with fluids and their interaction with the matrix, and the different thermodynamic conditions of temperature and pressure. It is noteworthy that special experimental facilities have been developed to study them under extreme conditions of temperature and pressure.
The potential topics of the Special Issue include but are not limited to the following:
- Complex electrical-dielectric properties;
- Conduction mechanisms;
- Nano- and micromechanical properties;
- Elastic properties and deformation characteristics;
- The correlation between electrical and mechanical properties;
- Advanced monitoring techniques;
- The modelling of geomaterials.
Review articles on the recent advances in the electrical and/or mechanical properties of geomaterials and related measuring techniques are also welcome.
Prof. Vassilis Saltas
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- high temperature and/or high pressure
- electrical properties
- elastic properties
- conduction mechanisms
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Saltas, D. Pentari, F. Vallianatos
The unique physicochemical, electrical, mechanical and thermal properties of micas make them suitable for a wide range of industrial applications and thus the scientific interest for this kind of hydrous aluminosilicate minerals is still persistent. In the present work, complex impedance spectroscopy measurements over a broad frequency range (10 mHz–1 MHz) and at elevated temperatures (423 K–1373 K) were carried out in muscovite and biotite micas, perpendicular to their cleavage planes. Different formalisms of data representation were used, such as Cole-Cole plots of complex impedance, complex electrical conductivity and electric modulus to analyze the electrical behavior of micas and its correlation with the de-hydroxylation process. AC-conductivity is strongly affected by the different concentrations of Fe and Ti. Low estimated activation energies suggest proton and/or polaron conduction due to bound water and different oxidation states of Fe, respectively