Mechanically stable monoclinic zirconia-nickel composite

A dense (>98% theoretical density), residual‐stress‐free m‐ZrO2/40 vol% nickel composite with K IC∼ 5.4 MPa·m1/2 and ςf∼ 225 MPa has been obtained using a simple wet processing route and subsequent sintering at 1430°C in a 90% argon/10% hydrogen atmosphere. The mechanism for release of internal stresses by the composite developed during the t → m transformation on cooling is explained in terms of plastic flow in the infinite nickel cluster formed at the percolation threshold.

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Bibliographic Details
Main Authors: Moya, J. S., López-Esteban, Sonia, Pecharromán, Carlos, Bartolomé Gómez, José Florindo, Torrecillas, Ramón
Other Authors: Ministerio de Ciencia y Tecnología (España)
Format: artículo biblioteca
Published: American Ceramic Society 2002
Online Access:http://hdl.handle.net/10261/223436
http://dx.doi.org/10.13039/501100006280
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