High temperature thermal properties of UFe2 Measurement by drop calorimetry and modelling using quasi-harmonic Debye-Gruneisen formalism

被引：2

作者：

Rai, Arun Kumar ^{[1
]}

Raju, Subramanian ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Calorimetry & Mat Modelling Sect, Microscopy & Thermophys Properties Div, Met & Mat Grp, Kalpakkam 603102, Tamil Nadu, India

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2013年 / 112卷 / 01期

关键词：

UFe2; Drop calorimetry; Heat capacity; Thermal expansion; Quasi-harmonic formalism; X-RAY-DIFFRACTION; HEAT-CAPACITY; THERMODYNAMIC PROPERTIES; LAVES; EXPANSION; URANIUM; ENTHALPIES; PHONON;

D O I：

10.1007/s10973-012-2589-7

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

High temperature drop calorimetry measurements of enthalpy increment have been made on phase pure UFe2 compound for temperatures up to 1,473 K. The measured data agreed well with the earlier reported data that are available only up to 1,000 K. An integrated modelling of the present heat capacity data has been made using the framework of quasi-harmonic Debye-Gruneisen formalism, the input parameters for which have been obtained after a critical appraisal of the available thermophysical data. The modelling yielded fully consistent estimates of both heat capacity and volume thermal expansivity, for the complete temperature range, 0-1,273 K.

引用

页码：73 / 82

页数：10

共 41 条

[1] THERMODYNAMIC DATA FOR URANIUM AND THORIUM INTERMETALLIC COMPOUNDS - A HISTORICAL-PERSPECTIVE [J].