Elastic moduli of a single quasicrystal of decagonal Al-Ni-Co: Evidence for transverse elastic isotropy

被引：95

作者：

Chernikov, MA ^{[1
]}

Ott, HR

Bianchi, A

Migliori, A

Darling, TW

机构：

[1] ETH Honggerberg, Festkorperphys Lab, CH-8093 Zurich, Switzerland

[2] Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.80.321

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The single quasicrystal elastic moduli c(ij) of decagonal Al-Ni-Co were determined using resonant ultrasound spectroscopy at selected fixed temperatures in the range between 5 and 290 K. Decagonal Al-Ni-Co is found to be transversely elastically isotropic to (0.02 +/- 0.04)%. The elastic moduli c(ij) (T) exhibit weak temperature dependences. The elastic Debye temperature Theta(D)(el) calculated from c(ij) measured at 5 K agrees well with the thermodynamic Debye temperature Theta(D)(th) obtained from a low-temperature specific-heat experiment.

引用

页码：321 / 324

页数：4

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