Ab initio lattice stability in comparison with CALPHAD lattice stability
A systematic first-principles calculation for the total energies of 78 pure elemental solids has been performed at zero Kelvin using the projector augmented-wave method within the generalized gradient approximation. The total energy differences, i.e. lattice stabilities, among the face-centered-cubi...
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| Veröffentlicht in: | Calphad 2004-03, Vol.28 (1), p.79-90 |
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| creator | Wang, Y. Curtarolo, S. Jiang, C. Arroyave, R. Wang, T. Ceder, G. Chen, L.-Q. Liu, Z.-K. |
| description | A systematic first-principles calculation for the total energies of 78 pure elemental solids has been performed at zero Kelvin using the projector augmented-wave method within the generalized gradient approximation. The total energy differences, i.e. lattice stabilities, among the face-centered-cubic (fcc), body-centered-cubic (bcc), and hexagonal-close-packed (hcp) crystal structures are studied and compared with the Scientific Group Thermodata Europe (SGTE) database developed by the CALPHAD method. For non-transitional elements, favorable comparison is observed, while for the majority of transition elements, particularly the V, Cr, Mn, Fe, and Co group elements, significant discrepancies exist. The Bain/tetragonal distortion analysis between fcc and bcc structures shows that when one structure is stable, the other is unstable, and the higher the energy of the unstable structure, the larger the discrepancy. Through analysis of the alloying effect in binary systems, we conclude that the lattice stability of unstable structures obtained through extrapolation of first-principles calculations in binary systems is close to the SGTE lattice stability obtained by the CALPHAD method. |
| doi_str_mv | 10.1016/j.calphad.2004.05.002 |
| format | Article |
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The total energy differences, i.e. lattice stabilities, among the face-centered-cubic (fcc), body-centered-cubic (bcc), and hexagonal-close-packed (hcp) crystal structures are studied and compared with the Scientific Group Thermodata Europe (SGTE) database developed by the CALPHAD method. For non-transitional elements, favorable comparison is observed, while for the majority of transition elements, particularly the V, Cr, Mn, Fe, and Co group elements, significant discrepancies exist. The Bain/tetragonal distortion analysis between fcc and bcc structures shows that when one structure is stable, the other is unstable, and the higher the energy of the unstable structure, the larger the discrepancy. Through analysis of the alloying effect in binary systems, we conclude that the lattice stability of unstable structures obtained through extrapolation of first-principles calculations in binary systems is close to the SGTE lattice stability obtained by the CALPHAD method.</description><identifier>ISSN: 0364-5916</identifier><identifier>EISSN: 1873-2984</identifier><identifier>DOI: 10.1016/j.calphad.2004.05.002</identifier><identifier>CODEN: CCCTD6</identifier><language>eng</language><publisher>Amsterdam: Elsevier Ltd</publisher><subject>Chemical thermodynamics ; Chemistry ; Exact sciences and technology ; General and physical chemistry ; General. 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The total energy differences, i.e. lattice stabilities, among the face-centered-cubic (fcc), body-centered-cubic (bcc), and hexagonal-close-packed (hcp) crystal structures are studied and compared with the Scientific Group Thermodata Europe (SGTE) database developed by the CALPHAD method. For non-transitional elements, favorable comparison is observed, while for the majority of transition elements, particularly the V, Cr, Mn, Fe, and Co group elements, significant discrepancies exist. The Bain/tetragonal distortion analysis between fcc and bcc structures shows that when one structure is stable, the other is unstable, and the higher the energy of the unstable structure, the larger the discrepancy. Through analysis of the alloying effect in binary systems, we conclude that the lattice stability of unstable structures obtained through extrapolation of first-principles calculations in binary systems is close to the SGTE lattice stability obtained by the CALPHAD method.</description><subject>Chemical thermodynamics</subject><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>General. 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Theory</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Y.</creatorcontrib><creatorcontrib>Curtarolo, S.</creatorcontrib><creatorcontrib>Jiang, C.</creatorcontrib><creatorcontrib>Arroyave, R.</creatorcontrib><creatorcontrib>Wang, T.</creatorcontrib><creatorcontrib>Ceder, G.</creatorcontrib><creatorcontrib>Chen, L.-Q.</creatorcontrib><creatorcontrib>Liu, Z.-K.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Calphad</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Y.</au><au>Curtarolo, S.</au><au>Jiang, C.</au><au>Arroyave, R.</au><au>Wang, T.</au><au>Ceder, G.</au><au>Chen, L.-Q.</au><au>Liu, Z.-K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ab initio lattice stability in comparison with CALPHAD lattice stability</atitle><jtitle>Calphad</jtitle><date>2004-03-01</date><risdate>2004</risdate><volume>28</volume><issue>1</issue><spage>79</spage><epage>90</epage><pages>79-90</pages><issn>0364-5916</issn><eissn>1873-2984</eissn><coden>CCCTD6</coden><abstract>A systematic first-principles calculation for the total energies of 78 pure elemental solids has been performed at zero Kelvin using the projector augmented-wave method within the generalized gradient approximation. The total energy differences, i.e. lattice stabilities, among the face-centered-cubic (fcc), body-centered-cubic (bcc), and hexagonal-close-packed (hcp) crystal structures are studied and compared with the Scientific Group Thermodata Europe (SGTE) database developed by the CALPHAD method. For non-transitional elements, favorable comparison is observed, while for the majority of transition elements, particularly the V, Cr, Mn, Fe, and Co group elements, significant discrepancies exist. The Bain/tetragonal distortion analysis between fcc and bcc structures shows that when one structure is stable, the other is unstable, and the higher the energy of the unstable structure, the larger the discrepancy. Through analysis of the alloying effect in binary systems, we conclude that the lattice stability of unstable structures obtained through extrapolation of first-principles calculations in binary systems is close to the SGTE lattice stability obtained by the CALPHAD method.</abstract><cop>Amsterdam</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.calphad.2004.05.002</doi><tpages>12</tpages></addata></record> |
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| subjects | Chemical thermodynamics Chemistry Exact sciences and technology General and physical chemistry General. Theory |
| title | Ab initio lattice stability in comparison with CALPHAD lattice stability |
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