Structural characterization of Cu-Ti-based bulk metallic glass by advanced electron microscopy

被引：11

作者：

Ishimaru, M ^{[1
]}

Hirotsu, Y

Hata, S

Ma, C

Nishiyama, N

Amiya, K

Inoue, A

机构：

[1] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan

[2] Kyushu Univ, Dept Appl Sci Elect & Mat, Fukuoka 8168580, Japan

[3] R&D Inst Met & Composites Future Ind, Sendai, Miyagi 9808577, Japan

[4] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2005年 / 85卷 / 03期

关键词：

D O I：

10.1080/09500830500153776

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The atomistic structure of a high-strength Cu42.5Ti41.5Ni7.5Zr2.5Hf5Si1 bulk metallic glass prepared by copper-mould casting has been characterized by transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM). High-resolution TEM and high-angle annular dark-field observations revealed that crystalline nanoparticles with sizes less than 10 nm are embedded in an amorphous matrix. It was confirmed by energy-dispersive X-ray spectroscopy in combination with STEM that these nanoparticles possess higher copper content than the amorphous matrix. Nanobeam electron diffraction experiments indicated that their crystalline structure is basically face-centred cubic with ordered atomic arrangements.

引用

页码：125 / 133

页数：9

共 22 条

[1] Mechanical behavior of a bulk Cu-Ti-Zr-Ni-Si-Sn metallic glass forming nano-crystal aggregate bands during deformation in the supercooled liquid region [J].