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Erba A, Desmarais JK, Casassa S, Civalleri B, Donà L, Bush IJ, Searle B, Maschio L, Edith-Daga L, Cossard A, Ribaldone C, Ascrizzi E, Marana NL, Flament JP, Kirtman B. CRYSTAL23: A Program for Computational Solid State Physics and Chemistry. J Chem Theory Comput 2023; 19:6891-6932. [PMID: 36502394 PMCID: PMC10601489 DOI: 10.1021/acs.jctc.2c00958] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Indexed: 12/14/2022]
Abstract
The Crystal program for quantum-mechanical simulations of materials has been bridging the realm of molecular quantum chemistry to the realm of solid state physics for many years, since its first public version released back in 1988. This peculiarity stems from the use of atom-centered basis functions within a linear combination of atomic orbitals (LCAO) approach and from the corresponding efficiency in the evaluation of the exact Fock exchange series. In particular, this has led to the implementation of a rich variety of hybrid density functional approximations since 1998. Nowadays, it is acknowledged by a broad community of solid state chemists and physicists that the inclusion of a fraction of Fock exchange in the exchange-correlation potential of the density functional theory is key to a better description of many properties of materials (electronic, magnetic, mechanical, spintronic, lattice-dynamical, etc.). Here, the main developments made to the program in the last five years (i.e., since the previous release, Crystal17) are presented and some of their most noteworthy applications reviewed.
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Affiliation(s)
- Alessandro Erba
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Jacques K. Desmarais
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Silvia Casassa
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Bartolomeo Civalleri
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Lorenzo Donà
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Ian J. Bush
- STFC
Rutherford Appleton Laboratory, Chilton Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - Barry Searle
- SFTC
Daresbury Laboratory, Daresbury, Cheshire WA4 4AD, United Kingdom
| | - Lorenzo Maschio
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Loredana Edith-Daga
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Alessandro Cossard
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Chiara Ribaldone
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Eleonora Ascrizzi
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Naiara L. Marana
- Dipartimento
di Chimica, Università di Torino, via Giuria 5, 10125 Torino, Italy
| | - Jean-Pierre Flament
- Université
de Lille, CNRS, UMR 8523 — PhLAM — Physique des Lasers, Atomes et Molécules, 59000 Lille, France
| | - Bernard Kirtman
- Department
of Chemistry and Biochemistry, University
of California, Santa
Barbara, California 93106, United States
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Leitner S, Winter G, Klarner J, Antretter T, Ecker W. Residual Stress Evolution in Low-Alloyed Steel at Three Different Length Scales. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2568. [PMID: 37048862 PMCID: PMC10095639 DOI: 10.3390/ma16072568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 03/05/2023] [Accepted: 03/09/2023] [Indexed: 06/19/2023]
Abstract
Quantitative and qualitative residual stress evolution in low-alloyed steel during heat treatment is investigated on three different length scales for sourgas resistant seamless steel tubes: on the component level, on the level of interdendritic segregation and on precipitate scale. The macroscopic temperature, phase and stress evolution on the component scale result from a continuum model of the heat treatment process. The strain and temperature evolution is transferred to a mesoscopic submodel, which resolves the locally varying chemistry being a result of interdendritic segregation. Within the segregation area and the surrounding matrix precipitates form. They are categorized with respect to their tendency for formation of microscopic residual stresses. After rapid cooling macroscopic stresses up to 700 MPa may form dependent on the cooling procedure. Mesoscopic stresses up to Δ50 MPa form depending on the extent of segregation. Carbides and inclusions occuring in low-alloyed steel are ranked by their tendency for residual stress formation in the iron matrix. This scale bridging study gives an overview of residual stresses, their magnitude and evolution on three different length scales in low-alloyed steels and the results presented can serve as a input for steel design.
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Affiliation(s)
- Silvia Leitner
- Materials Center Leoben Forschung GmbH, Roseggerstraße 12, 8700 Leoben, Austria;
| | - Gerald Winter
- Voestalpine Tubulars GmbH & Co KG, Alpinestrasse 17, 8652 Kindberg-Aumühl, Austria; (G.W.); (J.K.)
| | - Jürgen Klarner
- Voestalpine Tubulars GmbH & Co KG, Alpinestrasse 17, 8652 Kindberg-Aumühl, Austria; (G.W.); (J.K.)
| | - Thomas Antretter
- Institute of Mechanics, Montanuniversitaet Leoben, Franz Josef Strasse 18, 8700 Leoben, Austria;
| | - Werner Ecker
- Materials Center Leoben Forschung GmbH, Roseggerstraße 12, 8700 Leoben, Austria;
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Gusev AI. Mechanical properties of nonstoichiometric cubic titanium carbide TiC y. Phys Chem Chem Phys 2021; 23:18558-18567. [PMID: 34397064 DOI: 10.1039/d1cp02697f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The changes of elastic constants cij in the homogeneity interval from TiC0.50 to TiC1.00 of nonstoichiometric disordered cubic titanium carbide are evaluated by a semiempirical method for the first time. It is established that the elastic stiffness constants cij of a disordered TiCy decrease as the titanium carbide composition deviates from stoichiometry. The distributions of the Young's modulus E, the Poisson's ratio μ, shear G and bulk B moduli of monocrystalline particles of cubic TiCy on the crystallographic direction [hkl] and on relative carbon content y are calculated. The lowest values of Ghkl for TiCy are observed in the (111) plane. It is found that the deviation of titanium carbide from stoichiometric composition TiC1.0 is accompanied by increase of the elastic anisotropy. It is shown that the calculated Vickers hardness HV of titanium carbide on the relative carbon content y increases non-linearly with growing y.
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Affiliation(s)
- Aleksandr I Gusev
- Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, Pervomaiskaya str. 91, Ekaterinburg 620990, Russia.
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Chen Y, Xu C, Hu S, Zhao X, Xiao L, Cai Z. The thermodynamic stability and mechanical properties of TiC xN 1-x(0 ⩽x⩽ 1) compounds by cluster expansion method and first-principles calculations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:155701. [PMID: 33494079 DOI: 10.1088/1361-648x/abdf93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 01/25/2021] [Indexed: 06/12/2023]
Abstract
The thermodynamic stability and mechanical properties of titanium carbonitrides TiCxN1-x(0 ⩽x⩽ 1) are investigated by a combination of the universal cluster expansion method and the first-principles calculations. By considering the ordering of the N/C distributions on the anion sublattice sites of TiCxN1-x, a binary diagram of the heat of formation is constructed, and seven kinds of ground-state structures are predicted in the whole range of 0 ⩽x⩽ 1. These predicted ground-state TiCxN1-xstructures are further proved to be dynamically and mechanically stable by examining their phonon dispersion spectra and elastic constants. Further studies indicate that the mechanical and thermodynamic properties of the ternary TiCxN1-xstructures are generally better than those of the binary TiC or TiN, while the differences within the ternary systems are insignificant. The possible origin of the enhancement of the mechanical and thermodynamic properties of the predicted ground-state TiCxN1-xare discussed together with the electronic structures.
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Affiliation(s)
- Yijie Chen
- School of Materials Science and Engineering, Central South University, Changsha, 410083, People's Republic of China
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Canhui Xu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Shuanglin Hu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Xiaojun Zhao
- School of Materials Science and Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Lairong Xiao
- School of Materials Science and Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Zhenyang Cai
- School of Materials Science and Engineering, Central South University, Changsha, 410083, People's Republic of China
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Maul J, Ongari D, Moosavi SM, Smit B, Erba A. Thermoelasticity of Flexible Organic Crystals from Quasi-harmonic Lattice Dynamics: The Case of Copper(II) Acetylacetonate. J Phys Chem Lett 2020; 11:8543-8548. [PMID: 32969662 PMCID: PMC7901648 DOI: 10.1021/acs.jpclett.0c02762] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 09/18/2020] [Indexed: 06/11/2023]
Abstract
A computationally affordable approach, based on quasi-harmonic lattice dynamics, is presented for the quantum-mechanical calculation of thermoelastic moduli of flexible, stimuli-responsive, organic crystals. The methodology relies on the simultaneous description of structural changes induced by thermal expansion and strain. The complete thermoelastic response of the mechanically flexible metal-organic copper(II) acetylacetonate crystal is determined and discussed in the temperature range 0-300 K. The elastic moduli do not just shrink with temperature but they do so anisotropically. The present results clearly indicate the need for an explicit account of thermal effects in the simulation of mechanical properties of elastically flexible organic materials. Indeed, predictions from standard static calculations on this flexible metal-organic crystal are off by up to 100%.
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Affiliation(s)
- Jefferson Maul
- Dipartimento di Chimica,
Università di Torino, via Giuria 5, 10125 Torino,
Italy
| | - Daniele Ongari
- Laboratory of Molecular Simulation (LSMO), Institut
des Sciences et Ingénierie Chimiques, École Polytechnique
Fédérale de Lausanne (EPFL), Rue de l’Industrie 17,
Sion, Valais CH-1951, Switzerland
| | - Seyed Mohamad Moosavi
- Laboratory of Molecular Simulation (LSMO), Institut
des Sciences et Ingénierie Chimiques, École Polytechnique
Fédérale de Lausanne (EPFL), Rue de l’Industrie 17,
Sion, Valais CH-1951, Switzerland
| | - Berend Smit
- Laboratory of Molecular Simulation (LSMO), Institut
des Sciences et Ingénierie Chimiques, École Polytechnique
Fédérale de Lausanne (EPFL), Rue de l’Industrie 17,
Sion, Valais CH-1951, Switzerland
| | - Alessandro Erba
- Dipartimento di Chimica,
Università di Torino, via Giuria 5, 10125 Torino,
Italy
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Mohammadpour E, Altarawneh M, Al-Nu’airat J, Jiang ZT, Mondinos N, Dlugogorski BZ. Thermo-mechanical properties of cubic titanium nitride. MOLECULAR SIMULATION 2017. [DOI: 10.1080/08927022.2017.1393810] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ehsan Mohammadpour
- School of Engineering and Information Technology, Murdoch University, Murdoch, Australia
| | | | - Jomana Al-Nu’airat
- School of Engineering and Information Technology, Murdoch University, Murdoch, Australia
| | - Zhong-Tao Jiang
- School of Engineering and Information Technology, Murdoch University, Murdoch, Australia
| | - Nicholas Mondinos
- School of Engineering and Information Technology, Murdoch University, Murdoch, Australia
| | - Bogdan Z. Dlugogorski
- School of Engineering and Information Technology, Murdoch University, Murdoch, Australia
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Chong X, Jiang Y, Zhou R, Feng J. Electronic structures mechanical and thermal properties of V–C binary compounds. RSC Adv 2014. [DOI: 10.1039/c4ra07543a] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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