An investigation on morphology and structure of Cu–Cr-Al2O3 powders prepared by mechanical milling

DOI

10.2991/icmmcce-17.2017.70How to use a DOI?

Keywords

Cu- Cr- Al2O3 powder; microstructure; milling time; lattice parameter; particle size

Abstract

In this study, the effect of the milling time on microstructure of Cu-0.5 wt.% Cr-1 wt.% Al2O3was investigated. The lattice parameter was evaluated by the X-ray diffraction technique. The microstructure was characterized by scanning electron microscopy. Also, size and distribution of Cr and Al2O3 were investigated by using X-rays energy dispersive (EDX) mapping. The result shows that the lattice parameter of the Cu phase increases with increasing milling time. The changing trend of Cu particle sizes as the alloying time increases, the particle sizes first increase and then decrease. When milling 1.5h, the powders coarsen than as-received Cu powder. Then the particle sizes of the samples decreased when the milling time increased to 3h and above. In addition, the size and distribution of Cr and Al2O3 decreased and dispersed much fine with increasing milling time.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Depeng Shen
AU  - Yajing Zhu
AU  - Xu Yang
AU  - Weiping Tong
PY  - 2017/09
DA  - 2017/09
TI  - An investigation on morphology and structure of Cu–Cr-Al2O3 powders prepared by mechanical milling
BT  - Proceedings of the 2017 5th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering (ICMMCCE 2017)
PB  - Atlantis Press
SP  - 334
EP  - 338
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmcce-17.2017.70
DO  - 10.2991/icmmcce-17.2017.70
ID  - Shen2017/09
ER  -