Entropy-Enthalpy Compensation in Ti-V-Mn-Cr BCC Alloys Used as Hydrogen Storage Materials

被引：1
|
作者：
Kefi, Chourouk [1 ]
Huot, Jacques [1 ]
机构：
[1] Univ Quebec Trois Rivieres, Inst Rech lHydrogene, 3351 Forges, Trois Rivieres, PQ G9A 5H7, Canada
来源：
INORGANICS | 2023年 / 11卷 / 12期
基金：
加拿大自然科学与工程研究理事会;
关键词：
metal hydrides; BCC alloys; enthalpy-entropy compensation; CRYSTAL-STRUCTURE; HYDRIDING PROPERTIES; SORPTION PROPERTIES; LATTICE-DEFECTS; METAL-HYDRIDES; PHASE; ABSORPTION; MICROSTRUCTURE; KINETICS; ZR;
D O I：
10.3390/inorganics11120479
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
In this paper, we report the effect of the Cr/Mn ratio on the thermodynamic properties of Ti30V60Mn(10-x)Crx (x = 0, 3.3, 6.6 and 10) + 4 wt.% Zr alloys. It was found that the enthalpy and entropy change with the Cr/MN ratio and that the entropy and entropy variation is coupled in an enthalpy-entropy compensation fashion. Using a compensation quality factor, it was established that the enthalpy-entropy compensation is not due to a statistical origin, with a confidence of more than 95%.
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页数：11
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