Phason elastic constants of the icosahedral Al-Pd-Mn phase derived from diffuse scattering measurements

被引：51

作者：

Létoublon, A ^{[1
]}

de Boissieu, M

Boudard, M

Mancini, L

Gastaldi, J

Hennion, B

Caudron, R

Bellissent, R

机构：

[1] Ecole Natl Super Electrochim & Electromet Grenobl, Thermodynam & Physicochim Met Lab, Inst Natl Polytech Grenoble, CNRS,UMR 5614, F-38402 St Martin Dheres, France

[2] CNR, LAMEL, I-40129 Bologna, Italy

[3] CNRS, Ctr Rech Mecanismes Croissance Cristalline, F-13288 Marseille, France

[4] Ctr Etud Saclay, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France

[5] Off Natl Etud & Rech Aerosp, F-92320 Chatillon, France

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2001年 / 81卷 / 04期

关键词：

D O I：

10.1080/09500830010029409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The diffuse scattering in the diffraction pattern of the icosahedral Al-Pd-Mn quasicrystalline phase has been measured on an absolute scale by X-ray and neutron scattering on single-grain samples. Most of the diffuse scattering can be interpreted in the framework of the elasticity theory of icosahedral quasicrystals considering only phason fluctuations. At room temperature the absolute values of the K-1/k(B)T and K-2/k(B)T phason elastic constants are of the order of 0.06 and 0.031 atom(-1). The amount of diffuse scattering intensity is insensitive to the sample annealing treatment.

引用

页码：273 / 283

页数：11

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