| چکیده انگلیسی مقاله |
CrN/Cu composite powders were synthesized by employing a novel two-step technique. Firstly, the Cr2O3+CuO precursors were prepared by the solution combustion synthesis (SCS) method using cupric nitrate, urea, and chromium nitrate as initial materials. Subsequently, the SCS precursors were calcined at 850 °C in NH3 for 6 h, and transformed to CrN/Cu composite powders. The composite powders consist of the uniform subsphaeroidal particles with the particle size ranging from 200 to 300 nm. After the friction-wear test, the removal volume of the sintered CrN/Cu composite specimen (0.0218 mm3) is almost 80 times smaller than that of the sintered pure copper specimen (1.6634 mm3). The addition of CrN can improve the tribological performance of sintered copper significantly. Moreover, the electrical conductivity of the sintered CrN/Cu composite specimen is high to 85.6% of IACS (International Annealed Copper Standard). |
| نویسندگان مقاله |
Aimin Chu |
Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan, China.
Yuping Zhao |
School of Civil and Engineering, Hunan University of Science and Technology, Xiangtan, China.
Ud-din Rafi |
Materials Division, PINSTECH, Post Office Nilore, Islamabad, Pakistan.
Li Tian |
Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan, China.
Shibo Guo |
Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan, China.
Hongmei Xu |
Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan, China.
Huajian Zhang |
Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan, China.
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