在LaNi4.4Al0.3Fe0.3中储存的实验和理论研究
Chaker Briki1, Dmitry Dunikov2, Maha M Almoneef3
1Laboratory of Studies of Thermal Systems and Energy, Ibn Eljazzar Road, National Engineering School of Monastir, University of Monastir, Monastir 5019, Tunisia.
Materials (Basel, Switzerland)
|August 12, 2023
概括
这项研究使用P-C-T异热体在LaNi4.4Fe0.3Al0.3合金中模拟了的吸收/溶解. 数值分析揭示了关键材料参数和热力学演变与温度和压力.
科学领域:
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
- 热力学是一种热力学.
背景情况:
- 储合金对于能源应用至关重要.
- 了解与基于LaNi的合金的相互作用是材料优化的关键.
- 压力-组成-温度 (P-C-T) 异热量为合金的表征提供了重要的数据.
研究的目的:
- 在LaNi4.4Fe0.3Al0.3合金中的P-C-T异温体数值建模和分析的吸收/溶解.
- 导出和研究关键材料参数 (nα,nβ,Nmα,Nmβ,Pα,Pβ) 的温度依赖性行为.
- 研究相互作用期间热力学函数 (内部能量,,吉布斯自由能量) 的演变.
主要方法:
- 实验测量的吸收/溶解 P-C-T 异热体.
- 开发和应用一个数字模型,以适应实验数据.
- 模型参数 (nα,nβ,Nmα,Nmβ,Pα,Pβ) 的数值调整为实验等热量.
- 从实验数据中得出的热力学函数的分析.
主要成果:
- 控制相互作用的关键参数被数值推导出来,并分析了它们的温度概况.
- 在吸收过程中,内部能量演变范围从138-181 kJmol-1不等,在脱吸过程中从140-179 kJmol-1.1不等.
- 包括和吉布斯自由能量在内的热力学函数被确定为压力的函数.
结论:
- 数值模型成功地描述了所研究的合金中的吸收/溶解.
- 温度显著影响材料参数和热力学行为.
- 这项工作为LaNi4.4Fe0.3Al0.3合金的储机制提供了宝贵的见解.
相关概念视频
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