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Rare Metals

Erschienen in:

01.06.2015

Tribological properties of Cu-based composites with S-doped NbSe₂

verfasst von: Bei-Bei Chen, Shuai Chen, Jin Yang, Hong-Ping Li, Shun Guo, Hua Tang, Chang-Sheng Li

Erschienen in: Rare Metals | Ausgabe 6/2015

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Abstract

In this study, S-doped NbSe₂ (NbS_0.2Se_1.8) powders were fabricated, and the corresponding Cu-based composites (Cu/NbS_0.2Se_1.8) were obtained by powder metallurgy technique. The phase compositions, physical, and tribological properties of Cu-based composites were investigated systematically. The results show that Cu matrix reacts with NbS_0.2Se_1.8 to produce Cu₂Se and Cu_0.38NbS_0.2Se_1.8 during sintering process, which influences the physical and tribological properties of Cu-based composites significantly. Specially, with NbS_0.2Se_1.8 content increasing, the density of Cu/NbS_0.2Se_1.8 composites decreases, and the hardness increases firstly and then decreases, while the electric resistivity increases slightly. In addition, the incorporation of NbS_0.2Se_1.8 enhances the tribological properties of Cu greatly, which is attributed to the lubricating effect of Cu_0.38NbS_0.2Se_1.8 and the reinforcement effect of Cu₂Se. In particular, when the content of NbS_0.2Se_1.8 is 6 wt%, the Cu-based composite has the best tribological properties.

Vorheriger Artikel Microstructure and graphitization behavior of diamond/SiC composites fabricated by vacuum vapor reactive infiltration

Nächster Artikel Adherent coating on gradient cemented carbide with ultrafine Ti(C0.5,N0.5)

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Titel: Tribological properties of Cu-based composites with S-doped NbSe2
verfasst von: Bei-Bei Chen
Shuai Chen
Jin Yang
Hong-Ping Li
Shun Guo
Hua Tang
Chang-Sheng Li
Publikationsdatum: 01.06.2015
Verlag: Nonferrous Metals Society of China
Erschienen in: Rare Metals / Ausgabe 6/2015
Print ISSN: 1001-0521
Elektronische ISSN: 1867-7185
DOI: https://doi.org/10.1007/s12598-015-0464-y

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