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Electro Conductive Alumina Nanocomposites From Different Alumina-Carbides Mixtures

Opened Access Electro Conductive Alumina Nanocomposites From Different Alumina-Carbides Mixtures

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Autor: Díaz, Luis A.
Fernández, Adolfo
Okunkova, Anna
Solís, Washington
Peretyagin, Pavel
Gotor Martínez, Francisco José
Torrecillas, Ramón
Fecha: 2016
Publicado en: MATEC Web of Conferences, 65, 1-6.
Tipo de documento: Artículo
Resumen: This work presents the results of an electro-discharge machined ceramic composites consisting of a base non-conductive ceramic component such Al2O3, to which is added sufficient amounts of an electro-conductive ceramic nanoparticles such as TiC, TiNC, NbNC, TaNC, and SiC (whiskers) to achieve an electrical resistance of less than about 100W.cm. With these compositions intricate geometries and features as holes, chamfers, slots, angles, changing radii and complex curves can be electro-discharge machined (EDM) into the ceramic body after Pulsed Electrical Current Sintering (PECS) to achieve maximum density and mechanical properties. In EDM, the electrically conductive workpiece or ceramic blank is eroded by electric discharges or sparks which on a small scale generate localized shock waves and intense heat. The four compositions studied were in the same proportion for all raw materials: alumina 42 (vol %) + conductive material (TiC, TiNC, NbNC, and TaNC) 22 (vol %) + SiCw 36 (vol %). ...
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Cita: Díaz, L.A., Fernández, A., Okunkova, A., Solís, W., Peretyagin, P., Gotor Martínez, F.J. y Torrecillas, R. (2016). Electro Conductive Alumina Nanocomposites From Different Alumina-Carbides Mixtures. MATEC Web of Conferences, 65, 1-6.
Tamaño: 3.435Mb
Formato: PDF

URI: https://hdl.handle.net/11441/71878

DOI: 10.1051/matecconf/20166502003

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