The Influence of Cu on the Electrical Properties of Ti(C, N)-Based Cermets

Abstract:

Cermets Ti(C，N)_80%Co_(10-x)% TiC_10% Cu_x%(wt%，x=0，1，2，3， 4， 5) were prepared by powder metallurgy method under vacuum condition at 1500°C and the effects of Cu element to the electrical resistivity and flexural strength were studied in this paper. It turns out the electrical resistivity of the samples obviously decreases with the introduction of Cu element, but the electrical resistivity of the samples increases when the amount of Cu element in the samples becomes more. The flexural strengths of the samples decrease with the amount of Cu element increasing. Ti（C，N）_80% Co_9%TiC_10% Cu_1% shows the lowest electrical resistivity and the biggest flexural strength, 7.35*10-7Ω•m and 50.6Mpa. This may be due to the big wetting angle between Cu and the powders of the based body. With the amount of Cu element increasing, the obvious interfaces are made thus the electrical resistivity becomes bigger.

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 792-795
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.792
• Online since: November 2011
• Authors: Li Juan Pang, Gang Deng, Xue Feng Zhang, Hui Rong Li, Min Xian Fang, Yu He Li, Song Li Liu
• Keywords: Cermet, Cu, Electrical Resistivity, Ti(C,N)

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