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Relation between Self-Organization and Wear Mechanisms of Diamond Films
 
 
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Editorial

Thermodynamics in Material Science

1
Nanochemistry Research Institute, Department of Chemistry, Curtin University, Perth, WA 6845, Australia
2
Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
*
Author to whom correspondence should be addressed.
Submission received: 28 June 2018 / Accepted: 28 June 2018 / Published: 16 July 2018
(This article belongs to the Special Issue Thermodynamics in Material Science)
Authors were invited to offer papers dealing with Thermodynamics in Material Science, noting that thermodynamics has two traditional aspects: the generation of experimental data (then collected into databases) and the theoretical relationships which exist between different data types.
The papers included in this Special Issue showcase both the strength and the scope of modern-day thermodynamics in the material sciences and related areas, with contributions from Estonia, Russia, China, Poland, Germany, Hungary, USA and Canada. Thus we have presentations dealing with theoretical matters, experimental studies of alloy systems, chemical processes, and the consequences of mechanical processes. In fact, the highly specific nature of many of the papers displays the versatility of modern thermodynamics in its broad coverage of these topics.
This issue considers a number of highly relevant concerns which include:
  • A study of the use of Boltzmann and Stirling approaches in theoretical nano-thermodynamic calculations [1] where the replacement of Stirling’s Approximation by the de Moivre approximation is shown to improve results.
  • A study of ΔΗmixing of Al-Tb alloys in the liquid phase [2]
  • A new procedure [3] is proposed for enhancing the performance of a microcooler in both homogeneous and hybrid systems.
  • Composite Cu–Cr systems are examined during electric arc exposure [4].
  • Metallic liquids form moderately strong glasses [5]. There are clear thermodynamic trends demonstrating, for example, that their kinetic fragility is directly connected to their excess specific heats. This seems to be related to the fact that increasing numbers of differently-sized species in the mix produce greater densities.
  • The entropy increase brought about by fatigue occurring in soldering materials [6] is examined and confirmed using experimental studies.
  • The behavior of transformation optics in order to monitor heat flux in a new class of metamaterials [7] is reported.
  • A comparative study [8] is made of deposition equilibrium of carbon nanotubes compared to graphite for the reforming processes involving liquid petroleum gas (dry process) and natural gas (wet process).
  • Studies are related to the modelling of a continuous, microwave-assisted ethyl acetate production process, the aim being to enhance production [9]. The study involves variable initial flow rate velocities coupled with simulation of various temperature profiles which are checked experimentally using optical fibers. The results are relevant to a large scale microwave-induced production process for the ester.
  • The frictional properties of diamond films [10] have been studied. Such films are important due to their ability to self-lubricate by the formation of a carbonaceous interface between themselves and the component in contact with them. In the specific study considered the latter components are Si3N4 balls and, using a non-equilibrium thermodynamic model, various wear mechanisms are modelled. Such studies have relevance for railway rolling stock and other frictionally-dependent areas of interest.
Each of these studies exemplifies the usage of modern thermodynamics in practical applications of some importance in the varying fields of study here embraced.

Acknowledgments

We express our thanks to the authors of the above contributions, and to the journal Entropy and MDPI for their support during this work.

Conflicts of Interest

The authors declare no conflict of interest.

References

  1. Dezso, A.; Kaptay, G. On the Configurational Entropy of Nanoscale Solutions for More Accurate Surface and Bulk Nano-Thermodynamic Calculations. Entropy 2017, 19, 248. [Google Scholar] [CrossRef]
  2. Zhou, S.; Tackes, C.; Napolitano, R. Enthalpy of Mixing in Al–Tb Liquid. Entropy 2017, 19, 290. [Google Scholar] [CrossRef]
  3. Ruiz Ortega, P.; Olivares-Robles, M. Analysis of a Hybrid Thermoelectric Microcooler: Thomson Heat and Geometric Optimization. Entropy 2017, 19, 312. [Google Scholar] [CrossRef]
  4. Gershman, I.; Gershman, E.; Mironov, A.; Fox-Rabinovich, G.; Veldhuis, S. On Increased Arc Endurance of the Cu–Cr System Materials. Entropy 2017, 19, 386. [Google Scholar] [CrossRef]
  5. Gallino, I. On the Fragility of Bulk Metallic Glass Forming Liquids. Entropy 2017, 19, 483. [Google Scholar] [CrossRef]
  6. Wang, J.; Yao, Y. An Entropy Based Low-Cycle Fatigue Life Prediction Model for Solder Materials. Entropy 2017, 19, 503. [Google Scholar] [CrossRef]
  7. Xu, G.; Zhang, H.; Zhang, X.; Jin, Y. Investigating the Thermodynamic Performances of TO-Based Metamaterial Tunable Cells with an Entropy Generation Approach. Entropy 2017, 19, 538. [Google Scholar] [CrossRef]
  8. Jaworski, Z.; Pianko-Oprych, P. On the Deposition Equilibrium of Carbon Nanotubes or Graphite in the Reforming Processes of Lower Hydrocarbon Fuels. Entropy 2017, 19, 650. [Google Scholar] [CrossRef]
  9. Wu, Y.; Hong, T.; Tang, Z.; Zhang, C. Dynamic Model for a Uniform Microwave-Assisted Continuous Flow Process of Ethyl Acetate Production. Entropy 2018, 20, 241. [Google Scholar] [CrossRef]
  10. Podgursky, V.; Bogatov, A.; Yashin, M.; Sobolev, S.; Gershman, I. Relation between Self-Organization and Wear Mechanisms of Diamond Films. Entropy 2018, 20, 279. [Google Scholar] [CrossRef]

Share and Cite

MDPI and ACS Style

Glasser, L.; Jenkins, H.D.B. Thermodynamics in Material Science. Entropy 2018, 20, 532. https://0-doi-org.brum.beds.ac.uk/10.3390/e20070532

AMA Style

Glasser L, Jenkins HDB. Thermodynamics in Material Science. Entropy. 2018; 20(7):532. https://0-doi-org.brum.beds.ac.uk/10.3390/e20070532

Chicago/Turabian Style

Glasser, Leslie, and H. Donald Brooke Jenkins. 2018. "Thermodynamics in Material Science" Entropy 20, no. 7: 532. https://0-doi-org.brum.beds.ac.uk/10.3390/e20070532

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