Temperature-dependent mechanical and oxidation behavior of in situ formed ZrN/ZrO2-containing Si3N4-based composite
Abstract
In this work, Si 3 N 4 and Zr(NO 3 ) 4 were used as raw materials to prepare ZrN/ZrO 2 ‐containing Si 3 N 4 ‐based ceramic composite. The processing, phase composition, and microstructure of the composite were investigated. Hardness and fracture toughness of the ceramics were evaluated via Vickers indentation in Ar at 25°C, 300°C, 600°C, and 900°C. During spark plasma sintering, Zr(NO 3 ) 4 was transformed into tetragonal ZrO 2 , which further reacted with Si 3 N 4 , resulting in the formation of ZrN. The introduction of ZrN enhanced the high‐temperature mechanical properties of the composite, and its hardness and fracture toughness reached 13.4 GPa and 6.1 MPa·m 1/2 at 900°C, respectively. The oxidation experiment was carried out in air at 1000°C, 1300°C, and 1500°C for 5 h. It was shown that high‐temperature oxidation promoted the formation and growth of porous oxide layers. The microstructure and phase composition of the formed oxide layers were investigated in detail. Finally, it was identified that the obtained composite exhibited a higher thermal diffusivity than that of monolithic Si 3 N 4 in the temperature range of 100°C–1000°C.
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BibTeX
@article{liu2026temperaturedependent,
title = {{Temperature-dependent mechanical and oxidation behavior of in situ formed ZrN/ZrO2-containing Si3N4-based composite}},
author = {Jiongjie Liu and Wei Li and Emmanuel Ricohermoso and Zhuihui Qiao and Qingwen Dai and Xingmin Liu and Wenjie Xie and Emanuel Ionescu and Anke Weidenkaff and Ralf Riedel},
journal = {Journal of the American Ceramic Society},
year = {2026},
month = oct,
doi = {10.1111/jace.19146},
url = {https://hal.science/hal-05789775v1},
note = {CC BY},
}
RIS
TY - JOUR
TI - Temperature-dependent mechanical and oxidation behavior of in situ formed ZrN/ZrO2-containing Si3N4-based composite
AU - Jiongjie Liu
AU - Wei Li
AU - Emmanuel Ricohermoso
AU - Zhuihui Qiao
AU - Qingwen Dai
AU - Xingmin Liu
AU - Wenjie Xie
AU - Emanuel Ionescu
AU - Anke Weidenkaff
AU - Ralf Riedel
PY - 2026
DA - 2026/10/09
JO - Journal of the American Ceramic Society
DO - 10.1111/jace.19146
UR - https://hal.science/hal-05789775v1
AB - In this work, Si 3 N 4 and Zr(NO 3 ) 4 were used as raw materials to prepare ZrN/ZrO 2 ‐containing Si 3 N 4 ‐based ceramic composite. The processing, phase composition, and microstructure of the composite were investigated. Hardness and fracture toughness of the ceramics were evaluated via Vickers indentation in Ar at 25°C, 300°C, 600°C, and 900°C. During spark plasma sintering, Zr(NO 3 ) 4 was transformed into tetragonal ZrO 2 , which further reacted with Si 3 N 4 , resulting in the formation of ZrN. The introduction of ZrN enhanced the high‐temperature mechanical properties of the composite, and its hardness and fracture toughness reached 13.4 GPa and 6.1 MPa·m 1/2 at 900°C, respectively. The oxidation experiment was carried out in air at 1000°C, 1300°C, and 1500°C for 5 h. It was shown that high‐temperature oxidation promoted the formation and growth of porous oxide layers. The microstructure and phase composition of the formed oxide layers were investigated in detail. Finally, it was identified that the obtained composite exhibited a higher thermal diffusivity than that of monolithic Si 3 N 4 in the temperature range of 100°C–1000°C.
SN - 0002-7820
SN - 1551-2916
ER -