PAVLŮ, Jana, Petr ŘEHÁK, Jan VŘEŠŤÁL and Mojmír ŠOB. Combined quantum-mechanical and Calphad approach to description of heat capacity of pure elements below room temperature. CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2015, vol. 51, December, p. 161-171. ISSN 0364-5916. Available from: https://dx.doi.org/10.1016/j.calphad.2015.08.006.
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Basic information
Original name Combined quantum-mechanical and Calphad approach to description of heat capacity of pure elements below room temperature
Authors PAVLŮ, Jana (203 Czech Republic, guarantor, belonging to the institution), Petr ŘEHÁK (203 Czech Republic, belonging to the institution), Jan VŘEŠŤÁL (203 Czech Republic, belonging to the institution) and Mojmír ŠOB (203 Czech Republic, belonging to the institution).
Edition CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, OXFORD, PERGAMON-ELSEVIER SCIENCE LTD, 2015, 0364-5916.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 20303 Thermodynamics
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 2.129
RIV identification code RIV/00216224:14740/15:00081240
Organization unit Central European Institute of Technology
Doi http://dx.doi.org/10.1016/j.calphad.2015.08.006
UT WoS 000366790500016
Keywords in English Calculations; Gibbs free energy; Polynomials; Quantum theory; Specific heat Einstein temperature; Low temperatures; Pure elements; SGTE data; Zero Kelvin
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Eva Špillingová, učo 110713. Changed: 19/5/2017 14:02.
Abstract
Einstein temperature (TE) was determined by fitting of experimental heat capacity data by the Einstein function only which ensures that it will represent the harmonic vibrational Gibbs energy only. The values of the electronic and anharmonic contributions to Gibbs energy (heat capacity) of 51 elements in stable state are determined by fitting the parameters of polynomials describing these contributions to SGTE data at Tlim. For illustration, the results of calculation of heat capacities in low-temperature region performed by PHON software are presented.
Links
ED1.1.00/02.0068, research and development projectName: CEITEC - central european institute of technology
GA14-15576S, research and development projectName: Komplexní studium fázových diagramů pokročilých kovových materiálů, kombinující ab initio a semiempirické modelování s experimentálními postupy
Investor: Czech Science Foundation
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