Thermal properties of close-packed Fe up to 400 GPa determined using Hugoniot functions

Sano, Yukio; Sano, Tomokazu

Physical Review B, 2004, 69(14), 144201

Number of Access:417（2025-08-21 08:55 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89441

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Title
Thermal properties of close-packed Fe up to 400 GPa determined using Hugoniot functions
Creator
NRID
1000040029517 1000040029517
CreatorName
Sano, Yukio
NRID
1000030314371 1000030314371
ORCID
0000-0003-2624-5092 0000-0003-2624-5092
researchmap permalink
read0068627 read0068627
Scopus Author ID
7402240743 7402240743
CreatorName
Sano, Tomokazu
Description
Sano Y., Sano T.. Thermal properties of close-packed Fe up to 400 GPa determined using Hugoniot functions. Physical Review B - Condensed Matter and Materials Physics, 69, 14, 144201. https://doi.org/10.1103/PhysRevB.69.144201.
Abstract
A quadratic equation for the temperature-independent Grüneisen coefficient γ was derived by a method in which the Walsh-Christian and Mie-Grüneisen equations are combined. Some previously existing ab initio temperature Hugoniots for hexagonal close-packed solid Fe are inaccurate because the constant-volume specific heats on the Hugoniots CVH, which are related uniquely to the solutions of the quadratic equation, have values that are too small. A CVH distribution in the solid phase range was demonstrated to agree approximately with a previous ab initio distribution. In contrast, the corresponding γ distribution was significantly different from the ab initio distribution in the lower pressure region, and the γ distribution in the liquid phase range had a considerably larger gradient than the ab initio distribution. The causes of these disagreements are clarified.
Publisher
American Physical Society
Source Title
Physical Review B
Volume (Issue)
69(14)
Page
144201
Date of Issued
2004-04-01
Language
English
Handle URL
https://hdl.handle.net/11094/89441
PISSN
24699950
NCID
AA11187113
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1103/PhysRevB.69.144201
Access Rights
open access
CopyRight
Copyright 2004 by the American Physical Society
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article