Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 25    No. 6    June 2015

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Effects of Al and N plasma immersion ion implantation on surface microhardness, oxidation resistance and antibacterial characteristics of Cu
Quan-zhang AN1,2,3, Kai FENG1, He-ping Lü1, Xun CAI1, Tie-tun SUN3, Paul K. CHU2

1. Shanghai Key Laboratory of Materials Laser Processing and Modification,
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2. Department of Physics and Materials Science, City University of Hong Kong, Hong Kong 999077, China;
3. Changzhou EGing Photovoltaic Technology Co., Ltd., Changzhou 213200, China

Abstract:Al and N were introduced into copper substrate using plasma immersion ion implantation (PIII) in order to enhance its hardness and oxidation resistance. The dosage of N ion is 5×1016 cm-2, and range of dosage of Al ion is 5×1016-2×1017 cm-2. The oxidation tests indicate that the copper samples after undergoing PIII possess higher oxidation resistance. The degree of oxidation resistance is found to vary with implantation dosage of Al ion. The antibacterial tests also reveal that the plasma implanted copper specimens have excellent antibacterial resistance against Staphylococcus aureus, which are similar to pure copper.

 

Key words: copper; plasma immersion ion implantation; nanoindentation; oxidation resistance; antibacterial properties

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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