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Comparison of Properties of CeO2 Doped ZrO2 Samples Prepared by Conventional Sintering and by SPS

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Abstract:

The aim of the study was to prepare samples suitable for testing the shape memory phenomenon in ceramic systems. Testing would be carried out by preparing micro-objects with dimensions in the order of micrometers using SEM/FIB techniques, and subsequent testing using a nanoindenter. The article deals with the influence of the preparation method on the properties of samples prepared by conventional annealing and spark plasma sintering. Two commercial powders were used, namely PSZ-10C and PSZ-20C. The microstructure of the samples, fracture surfaces and HV hardness, as well as indentation hardness were evaluated on the prepared samples. It was shown, that both conventional annealing and SPS can be used for preparation of samples with a suitable grain size, but also that the preparation method has a significant impact on the properties of the sample. Depending on the preparation method, the grain size varied from approximately 1 μm to 50 μm. There is also difference in the character of the fracture surfaces and in the hardness of the samples, where a difference in indentation hardness from approximately 10 GPa to approximately 20 GPa was measured.

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Periodical:

Defect and Diffusion Forum (Volume 448)

Pages:

113-118

DOI:

https://doi.org/10.4028/p-I7mFRW

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Online since:

March 2026

Authors:

Marek Vojtko*, Peter Tatarko, Viktor Puchý

Keywords:

CeO2- Doped ZrO2, Fracture, Grain Size, Hardness, Sintering, SPS

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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