Thermophysical properties of BaUO3

被引：25

作者：

Yamanaka, S ^{[1
]}

Kurosaki, K ^{[1
]}

Matsuda, T ^{[1
]}

Uno, M ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Nucl Engn, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF NUCLEAR MATERIALS | 2001年 / 294卷 / 1-2期

关键词：

D O I：

10.1016/S0022-3115(01)00474-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermophysical properties of BaUO3, specifically melting point, thermal expansion coefficient, elastic moduli, Debye temperature, and thermal conductivity, have been studied. The longitudinal and shear sound velocities of BaUO3 were measured by an ultrasonic pulse-echo method at room temperature, which enabled us to calculate the elastic properties and the Debye temperature. Microhardness measurements were made for BaUO3 at room temperature using a micro-Vickers hardness tester. These mechanical properties of BaUO3 differed from those of UO2. The thermal conductivity was calculated from the measured density and thermal diffusivity and literature values of heat capacity. The thermal conductivity of BaUO3 was about one-tenth that of UO2. The thermophysical properties of BaUO3 were found to be glass-like rather than like those of typical ceramics. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：99 / 103

页数：5

共 24 条

[1]

Ashby M.F., 1982, DEFORMATION MECH MAP

[2] Low-energy vibrational dynamics of hydrogenated silica gels [J].

Bartolotta, A ;

Carini, G ;

D'Angelo, G ;

Fontana, A ;

Rossi, F ;

Tripodo, G .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1999, 245 :9-14

[3]

BUYKX WJ, 1982, J NUCL MATER, V102, P78

[4]

Cordfunke E.H.P., 1990, THERMOCHEMICAL DATA

[5] THE MAGNETIC-SUSCEPTIBILITY AND STRUCTURE OF BAUO3 [J].

HINATSU, Y .

JOURNAL OF SOLID STATE CHEMISTRY, 1993, 102 (02) :566-569

[6]

Inaba H., 1983, Netsu Sokutei, V10, P132

[7] THE CHEMICAL-STATE OF THE FISSION-PRODUCTS IN OXIDE FUELS [J].

KLEYKAMP, H .

JOURNAL OF NUCLEAR MATERIALS, 1985, 131 (2-3) :221-246

[8]

Lindemann FA, 1910, PHYS Z, V11, P609

[9] THE THERMAL-EXPANSION OF SOLID UO2 AND (U, PU) MIXED OXIDES - A REVIEW AND RECOMMENDATIONS [J].

MARTIN, DG .

JOURNAL OF NUCLEAR MATERIALS, 1988, 152 (2-3) :94-101

[10]

MURTI PS, 1992, MATER CHEM PHYS, V31, P447

← 1 2 3 →