Measurement of elastic and anelastic properties of nanocrystalline metals

被引：19

作者：

Lang, MJ ^{[1
]}

Duarte-Dominguez, M

Birringer, R

Hempelmann, R

Natter, H

Arnold, W

机构：

[1] Fraunhofer Inst Zerstorungsfreie Prufverfahren, Tech Phys, D-66123 Saarbrucken, Germany

[2] Fraunhofer Inst Zerstorungsfreie Prufverfahren, Phys Chem, D-66123 Saarbrucken, Germany

来源：

NANOSTRUCTURED MATERIALS | 1999年 / 12卷 / 5-8期

关键词：

D O I：

10.1016/S0965-9773(99)00241-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Due to their high content in nanocrystalline materials, the grain boundaries are expected to contribute significantly to the elastic and anelastic properties of the bulk material. Thus nanocrystalline materials lend themselves to the study of grain boundary contributions to absorption and dispersion of ultrasonic waves. We have examined nanocrystalline Pd and Cu. They exhibit an anomalously large absorption which varies linearly with frequency. (C)1999 Acta Metallurgica Inc.

引用

页码：811 / 816

页数：6

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