Preprint Article Version 1 This version is not peer-reviewed

Model of Total Volume Stability for Preparing Polymorph Zirconia Ceramics as Functional Structure Materials

Version 1 : Received: 2 December 2018 / Approved: 4 December 2018 / Online: 4 December 2018 (08:52:15 CET)

How to cite: Hoo, Y.; Shi, Y.; Lu, W.. Model of Total Volume Stability for Preparing Polymorph Zirconia Ceramics as Functional Structure Materials. Preprints 2018, 2018120048 (doi: 10.20944/preprints201812.0048.v1). Hoo, Y.; Shi, Y.; Lu, W.. Model of Total Volume Stability for Preparing Polymorph Zirconia Ceramics as Functional Structure Materials. Preprints 2018, 2018120048 (doi: 10.20944/preprints201812.0048.v1).

Abstract

In this study, a parameter of volume stability was proposed for the first time to design polymorph zirconia ceramics used for special components. A series of heterogeneous polymorph zirconia ceramics with various amounts of monoclinic (M) phase were fabricated by two-step sintering. Samples with about 27%, 31%, and 51% M phase content were selected to study the properties. The thermal shock durability was found to be associated with thermal expansion behavior and noncritical micro cracks, which both based on M phase initial content. In good agreement with experimental results, the correlation of normalized K versus M phase initial content was established. It could provide a repeatable reference to prepare special zirconia components without loss of density.

Subject Areas

effective transition field, volume stability, thermal shock durability, self-restoration

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