Advances in the Thermochemistry of Natural and Synthetic Minerals

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Crystallography and Physical Chemistry of Minerals & Nanominerals".

Deadline for manuscript submissions: closed (10 September 2021) | Viewed by 2239

Special Issue Editor


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Guest Editor
Bulgarian Academy of Sciences, Institute of Mineralogy and Crystallography, Sofia, Bulgaria
Interests: solid state chemistry; thermochemistry and crystal chemistry of cement composites; thermochemistry of natural and synthetic minerals and materials; thermodynamics, calorimetry and kinetics; solids wastes and their applications
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Special Issue Information

Dear Colleagues,

Thermochemistry as a part of physical chemistry studies the energy changes associated with materials chemical transformations under the temperature influence and related energy states and transitions. The thermochemistry of minerals, natural and synthetic, plays a large role in modern material science. Mineral formation and change studies, by their crystal–chemical and microstructural properties, are of fundamental importance for advanced mineral systems investigations. Studies on mineral thermochemistry are carried out by measuring their physical properties as a function of temperature or time by varying the speed of heating or cooling in adjustable gaseous media.

The combination of thermal methods with other analytical techniques such as mass spectrometry or IR spectroscopy analysis of evolving gases, X-ray, spectroscopic, microscopic, etc. is a powerful approach to study the processes of microstructure formation, phase transformations, crystal and amorphous states detection, structural defects, and energetic effects.

This Special Issue aims to cover the latest research on minerals thermochemistry, including solid-phase synthesis, thermal decomposition, phase transitions, and thermal phenomena. The obtained new knowledge about minerals thermochemistry will enable a detailed study of their crystal chemistry, microstructure, calorimetery, heat capacity, thermal conductivity, thermal decomposition mechanism, and potential applications.

It is my pleasure to invite you to submit a manuscript for this Special Issue of Minerals. Full papers, short communications, and reviews are all welcome.

Dr. Vilma Petkova
Guest Editor

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 submissions that pass pre-check are 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. Minerals is an international peer-reviewed open access monthly 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 2400 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.

Keywords

  • thermal properties
  • thermal decomposition
  • thermal conductivity
  • kinetics
  • calorimetry
  • heat capacity
  • reaction mechanism

Published Papers (1 paper)

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Research

17 pages, 6413 KiB  
Article
Anisotropic Differences in the Thermal Conductivity of Rocks: A Summary from Core Measurement Data in East China
by Yibo Wang, Zhuting Wang, Lin Shi, Yuwei Rong, Jie Hu, Guangzheng Jiang, Yaqi Wang and Shengbiao Hu
Minerals 2021, 11(10), 1135; https://doi.org/10.3390/min11101135 - 15 Oct 2021
Cited by 5 | Viewed by 1673
Abstract
The study of thermal conductivity anisotropy is of great importance for more accurate heat flow calculations, geodynamic studies, development and utilization of hot dry rock, and simulation of heat transfer in geological reservoirs of nuclear waste, and so on. To study the thermal [...] Read more.
The study of thermal conductivity anisotropy is of great importance for more accurate heat flow calculations, geodynamic studies, development and utilization of hot dry rock, and simulation of heat transfer in geological reservoirs of nuclear waste, and so on. To study the thermal conductivity anisotropy of rocks, 1158 cores from 60 boreholes in East China were tested for thermal conductivity, including thermal conductivity values parallel to (λ) and perpendicular to (λ) structural planes of basalt, mudstones, gneisses, sandstones, carbonates, evaporites, and metamorphic rocks. The thermal conductivity anisotropy is not obvious for sand, clay, and evaporate, and the average anisotropic factors of 1.19 ± 0.22, 1.18 ± 0.17, and 1.18 ± 0.17 for tuff/breccia, granitoid and contact metamorphic rocks, respectively, indicate that these three rocks have strong anisotropy characteristics. Finally, the effect of thermal conductivity anisotropy on heat flow is studied and discussed in detail, showing that the results of thermal conductivity tests have a significant effect on the calculation of heat flow and thermal structure, and the data show that a deviation of about 10% in thermal conductivity causes a deviation of about 11% in heat flow, which may lead to a misperception of deep thermal structure studies. The regular and anisotropic characteristics of thermal conductivity of various rocks in Eastern China obtained in this paper can provide parameter support for projects such as heat flow calculations, thermal structure studies, and geothermal resource development and utilization. Full article
(This article belongs to the Special Issue Advances in the Thermochemistry of Natural and Synthetic Minerals)
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