Propagation of phonons in nanocrystalline ZrO2: Y2O3 ceramics

被引:18
作者
Barabanenkov, Yu. N. [1 ]
Ivanov, V. V.
Ivanov, S. N.
Salamatov, E. I.
Taranov, A. V.
Khazanov, E. N.
Khasanov, O. L.
机构
[1] Russian Acad Sci, Inst Radio Engn & Elect, Moscow 125009, Russia
[2] Russian Acad Sci, Ural Div, Inst Electrophys, Ekaterinburg 620219, Russia
[3] Russian Acad Sci, Ural Div, Inst Physicotech, Izhevsk 426000, Russia
[4] Tomsk Polytech Univ, Tomsk 634050, Russia
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1134/S1063776106010134
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Phonon transfer in yttrium-oxide (Y2O3) stabilized ZrO2 ceramics is studied experimentally in the range of helium temperatures (1.7-3.8 K). A model of the structure of the intergranular layer in the ceramic is considered, which explains the temperature dependence of the phonon diffusion coefficient, makes it possible to determine the intergranular layer parameters (density, velocity of sound, and thickness), and gives an idea about its structure. Scattering of iRiected phonons from resonance vibrations of nanoceramic grains is discussed.
引用
收藏
页码:114 / 120
页数:7
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