Skip to Main content Skip to Navigation
Journal articles

Single-step sintering of zirconia ceramics using hydroxide precursors and Spark Plasma Sintering below 400 °C

Abstract : The densification of zirconia at very low temperatures (<400 °C) requires enhanced synergy between thermodynamics and kinetics. This work demonstrates an efficient single step approach combining amorphous hydrated zirconia and Spark Plasma Sintering at 350 °C and 600 MPa. The resulting zirconia ceramics exhibit a cohesive nanostructure with small average grain sizes (20 nm) and a predominantly monoclinic structural polymorph confirmed by both X-ray scattering analyses and High Resolution Transmission Electronic Microscopy. Remarkable Vickers hardness of 3.8 GPa for high level of porosity (30%) is explained by the density and homogeneous distribution of grains boundaries and meso/microporosities.
Document type :
Journal articles
Complete list of metadata

Cited literature [41 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-02125329
Contributor : Stéphane Toulin <>
Submitted on : Monday, May 13, 2019 - 5:52:38 PM
Last modification on : Thursday, July 9, 2020 - 4:34:02 PM

Files

2019-067.pdf
Files produced by the author(s)

Principe de précaution - Embargo supérieur à la loi sur le numérique

Identifiers

Collections

Citation

Catherine Elissalde, U-Chan Chung, Michaël Josse, Graziella Goglio, Matthew Suchomel, et al.. Single-step sintering of zirconia ceramics using hydroxide precursors and Spark Plasma Sintering below 400 °C. Scripta Materialia, Elsevier, 2019, 168, pp.134-138. ⟨10.1016/j.scriptamat.2019.04.037⟩. ⟨hal-02125329⟩

Share

Metrics

Record views

212

Files downloads

60