Local ordering in the intermetallic compound Cu1-xAl2 studied by NMR spectroscopy

被引：23

作者：

Haarmann, Frank ^{[1
]}

Armbruester, Marc ^{[1
]}

Grin, Yuri ^{[1
]}

机构：

[1] Max Planck Inst Chem Phys Fester Stoffe, D-01187 Dresden, Germany

来源：

CHEMISTRY OF MATERIALS | 2007年 / 19卷 / 05期

关键词：

D O I：

10.1021/cm062313k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The relation between the homogeneity range and the chemical bonding in the intermetallic compound Cu1-xAl2 was investigated by nuclear magnetic resonance spectroscopy. Cu-63,Cu-65 and Al-27 NMR spectroscopy experiments were carried out on Al- and Cu-rich powder samples of the binary phase Cu1-xAl2. Solely combined application of several NMR techniques like orientational dependent measurements of powder samples aligned in a magnetic field and spin echo double resonance (SEDOR) experiments revealed the formation of vacancies at the copper sites. Two other possible mechanisms substitution of Cu by Al and vice versa, were excluded.

引用

页码：1147 / 1153

页数：7

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