Sintering activation energies of anisotropic layered and particle alumina/zirconia-based composites and their mechanical response

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU151252" target="_blank" >RIV/00216305:26620/24:PU151252 - isvavai.cz</a>

Alternative codes found

RIV/68081723:_____/24:00597780

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0272884224016602?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0272884224016602?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2024.04.263" target="_blank" >10.1016/j.ceramint.2024.04.263</a>

Result language

angličtina

Original language name

Sintering activation energies of anisotropic layered and particle alumina/zirconia-based composites and their mechanical response

Original language description

Information on the sintering activation energy is currently focused on evaluation of single-phase ceramic systems. This work shows the results of high-temperature dilatometry measurements of layered and particle composites based on alumina and zirconia. Layered composites with different layer thickness ratios and particle composites with variable composition in the entire concentration range were prepared by electrophoretic deposition allowing manufacturing composites with precious design and strongly bonded interfaces. The phenomena observed during the high-temperature dilatometry measurements are discussed, and the data were used to calculate the sintering activation energies of composites using the modified Master Sintering Curve concept. By covering a wide range of composite designs, it was possible to determine differences in activation energies and to show their dependence on the direction in the case of laminate composites given by the directionally dependent sintering behaviour. Sintering activation energies of layered composites were always higher than for monoliths due to constrained sintering showing maximum sintering activation energies at lower volumes of zirconia in the layers for longitudinal and transversal orientation of the samples. A similar trend was identified in particle composites due to slowed down alumina densification by the pinning effect. Additionally, mechanical properties represented by Vickers hardness and indentation elastic modulus were related to the microstructure developed during sintering. The effects of interconnectivity of phases present in the composites together with other parameters of the microstructure were described.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20504 - Ceramics

Project

<a href="/en/project/EH22_008%2F0004634" target="_blank" >EH22_008/0004634: Mechanical engineering of biological and bio-inspired systems</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

CERAMICS INTERNATIONAL

ISSN

0272-8842

e-ISSN

1873-3956

Volume of the periodical

50

Issue of the periodical within the volume

19

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

37430-37440

UT code for WoS article

001295772400001

EID of the result in the Scopus database

2-s2.0-85191540373