Inelastic neutron scattering and lattice dynamics of ZrO2, Y2O3 and ThSiO4

被引：4

作者：

Bose, Preyoshi P. ^{[1
]}

Mittal, R. ^{[1
,2
]}

Choudhury, N. ^{[1
]}

Chaplot, S. L. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India

[2] Tech Univ Munich, KFA Julich GmbH, Forschungszentrum, Julich Ctr Neutron Sci, D-85747 Garching, Germany

来源：

PRAMANA-JOURNAL OF PHYSICS | 2008年 / 71卷 / 05期

关键词：

Lattice dynamics; thermodynamic properties; inelastic neutron scattering; phase transitions; advanced oxide ceramics;

D O I：

10.1007/s12043-008-0237-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Zirconia (ZrO2), yttria (Y2O3) and thorite (ThSiO4) are ceramic materials used for a wide range of industrial applications. The dynamical properties of these materials are of interest as they exhibit numerous interesting phase transitions at high temperature and pressure. Using a combination of inelastic neutron scattering and theoretical lattice dynamics we have studied the phonon spectra and thermodynamic properties of these compounds. The experimental data validate the theoretical model, while the model enables microscopic interpretations of the observed data. The calculated thermodynamic properties are in good agreement with the experimental data.

引用

页码：1141 / 1146

页数：6

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