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Wet processing and characterization of ZrO2/stainless steel composites: electrical and mechanical perfomance.

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dc.creator Pecharromán, Carlos
dc.creator López-Esteban, S.
dc.creator Bartolomé Gómez, José Florindo
dc.creator Moya, J. S.
dc.creator Castanhob, S. R. H. Mello
dc.date 2007-11-15T13:08:18Z
dc.date 2007-11-15T13:08:18Z
dc.date 2001
dc.date.accessioned 2017-01-31T00:58:41Z
dc.date.available 2017-01-31T00:58:41Z
dc.identifier Mat. Res., jul. 2001, vol.4, no.3, p.217-222
dc.identifier 1516-1439
dc.identifier http://hdl.handle.net/10261/2166
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2166
dc.description Zirconia/stainless steel composites have been prepared by a wet processing method with metal volume concentration ranging from 15% to 30%. The composites were characterized by electrical andmechanicalmeasurements. The dependence of the electrical properties of these composites with themetal concentration presents a percolative behaviour with ametal-insulator transition, in addition to an increment of the capacity in the neighbourhood of a critical volume concentration. This value was found to be fc = 0.285, which is much higher than the theoretical value for randomly dispersed 3D composites (fc = 0.16). It has been found that the incorporation of stainless steel particles to zirconia matrix, increases the toughness and decreases both the hardness and the flexural strength. The enhancement of toughness is attributed to a crack deflection mechanism as a consequence of a weak ZrO2/stainless steel interface.
dc.description This work was supported by CICYT, Spain, under project number MAT97-0724, S.R.H. Mello Castanho acknowledges Mr. S. Kvist, from Höganäs for send the steel powder samples.
dc.description Peer reviewed
dc.language eng
dc.publisher Universidade Federal de São Carlos
dc.rights openAccess
dc.subject Zirconia/stainless steel composites
dc.subject Wet-processing
dc.subject Mechanical properties
dc.subject Electrical properties
dc.title Wet processing and characterization of ZrO2/stainless steel composites: electrical and mechanical perfomance.
dc.type Artículo


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