Room-Temperature Electrical Conductivity Property of Si3N4/TiN Composite Ceramics

Abstract:

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Room-temperature electrical conductivity property of Si3N4/TiN composite ceramics fabricated by Si3N4 powders from iron ore tailing and high titanium slag was investigated. Si3N4/TiN composite ceramics were machined by electrical discharge machining. The results show that the minimum amount of TiO2 in initial raw materials is about 20wt% for the formation of electroconductive network in the composites, of which the electric resistivity is 4.25×10-2•cm. The electric resistivity decreases slightly with increasing the sintering temperature. Surface roughness enhances significantly with the speed of the electrical discharge machining rising.

Info:

Periodical:

Advanced Materials Research (Volumes 150-151)

Edited by:

Jinglong Bu, Zhengyi Jiang and Sihai Jiao

Pages:

257-261

DOI:

10.4028/www.scientific.net/AMR.150-151.257

Citation:

S. H. Zhang et al., "Room-Temperature Electrical Conductivity Property of Si3N4/TiN Composite Ceramics", Advanced Materials Research, Vols. 150-151, pp. 257-261, 2011

Online since:

October 2010

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Price:

$35.00

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