Table of Contents
Ceramics, Volume 1, Issue 2 (December 2018)
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Cover Story (view full-size image) Without doubt, nanosized ceramic powders can have remarkable properties. However, transferring such [...] Read more. Without doubt, nanosized ceramic powders can have remarkable properties. However, transferring such structures into dense, bulk ceramic materials compatible with e.g. use in fuel cells is highly challenging. The problem, from a practical point of view, is that the subsequent annealing and sintering steps would destroy these nanostructures. Here we use a novel approach to overcome this obstacle. By using well-defined nanosized particles with a core–shell structure, the desired nanoscale microstructure is already defined in the reactant. In combination with spark plasma sintering, which enables very short sintering times at temperatures lower than in conventional sintering methods, it is possible to partly preserve the core–shell architecture of the primary powders after densification. View this paper.