Preparation of nickel-based Ni-Ag composite nanoparticles synthesized by DC arc-discharge plasma method and its sintering electrical properties
WANG Zi-ming, WANG Dong-xing, LU Shan-shan, WANG Xin, DONG Xing-long
Key Laboratory of Materials Modification by Laser, Ion and Electron Beams(Ministry of Education), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
Abstract：Ni-Ag nanoparticles were prepared by DC arc-discharge plasma method, using the compacted micron-sized powders of Ni and Ag as the raw targets. The content of Ni in Ni-Ag nanoparticles samples was 70.54%(mass fraction). The particles' sizes were mainly in range of 30-70 nm. The results indicate that the resistivity of compressed Ni-Ag powders has low resistivity of 5.36×10-5 Ω·cm. The conductive ink is prepared by using of Ni-Ag nanoparticles (70.54% of Ni) as the additive. An ink line is drew on a polyimide sheet matrix, subsequently dried and sintered at elevated temperatures under protective atmosphere of Ar. The electrical property testing results of sintering samples show dense structure and good conductivity over 300℃. It is indicated that the resistivity of the sintered sample declines with the temperature rising, i.e. 1.83×10-3 Ω·cm at sintering temperature of 450℃ which is much lower than that of the ink line of pure Ni nanoparticles.
王子明, 王东星, 陆姗姗, 王鑫, 董星龙. 镍基Ni-Ag复合纳米粒子直流电弧等离子体法制备及其烧结电学性能[J]. 材料工程, 2020, 48(3): 92-97.
WANG Zi-ming, WANG Dong-xing, LU Shan-shan, WANG Xin, DONG Xing-long. Preparation of nickel-based Ni-Ag composite nanoparticles synthesized by DC arc-discharge plasma method and its sintering electrical properties. Journal of Materials Engineering, 2020, 48(3): 92-97.
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