Influence of Sintering Conditions and Nanosilicon Carbide Concentration on the Mechanical and Thermal Properties of Si3N4-Based Materials

Gizowska, Magdalena; Piątek, Milena; Perkowski, Krzysztof; Antosik, Agnieszka

doi:10.3390/ma16052079

Open AccessEditor’s ChoiceArticle

Influence of Sintering Conditions and Nanosilicon Carbide Concentration on the Mechanical and Thermal Properties of Si₃N₄-Based Materials

by

Magdalena Gizowska

^*

,

Milena Piątek

,

Krzysztof Perkowski

and

Agnieszka Antosik

Łukasiewicz Research Network, Institute of Ceramics and Building Materials, 8 Cementowa Street, 31-983 Krakow, Poland

^*

Author to whom correspondence should be addressed.

Materials 2023, 16(5), 2079; https://doi.org/10.3390/ma16052079

Submission received: 15 December 2022 / Revised: 9 February 2023 / Accepted: 10 February 2023 / Published: 3 March 2023

(This article belongs to the Special Issue New Studies in Ceramics: Synthesis, Sintering, Characterization and Potential Applications)

Download

Browse Figures

Review Reports Versions Notes

Abstract

In the work, silicon nitride ceramics (Si₃N₄) and silicon nitride reinforced by nano silicon carbide particles (Si₃N₄-nSiC) in amounts of 1–10 wt.% were investigated. The materials were obtained using two sintering regimes: under conditions of ambient and high isostatic pressure. The influence of the sintering conditions and the concentration of nanosilicon carbide particles on the thermal and mechanical properties was studied. The presence of highly conductive silicon carbide particles caused an increase in thermal conductivity only in the case of the composites containing 1 wt.% of the carbide phase (15.6 W·m⁻¹·K⁻¹) in comparison with silicon nitride ceramics (11.4 W·m⁻¹·K⁻¹) obtained under the same conditions. With the increase in the carbide phase, a decrease in the densification efficiency during sintering was observed, which caused a decrease in thermal and mechanical performance. The sintering performed using a hot isostatic press (HIP) proved to be beneficial in terms of mechanical properties. The one-step high-pressure assisted sintering process in the HIP minimizes the formation of defects at the sample surface.

Keywords: fracture toughness; hardness; hot isostatic pressing; silicon carbide nanopowder; silicon nitride; thermal conductivity

Share and Cite

MDPI and ACS Style

Gizowska, M.; Piątek, M.; Perkowski, K.; Antosik, A. Influence of Sintering Conditions and Nanosilicon Carbide Concentration on the Mechanical and Thermal Properties of Si₃N₄-Based Materials. Materials 2023, 16, 2079. https://doi.org/10.3390/ma16052079

AMA Style

Gizowska M, Piątek M, Perkowski K, Antosik A. Influence of Sintering Conditions and Nanosilicon Carbide Concentration on the Mechanical and Thermal Properties of Si₃N₄-Based Materials. Materials. 2023; 16(5):2079. https://doi.org/10.3390/ma16052079

Chicago/Turabian Style

Gizowska, Magdalena, Milena Piątek, Krzysztof Perkowski, and Agnieszka Antosik. 2023. "Influence of Sintering Conditions and Nanosilicon Carbide Concentration on the Mechanical and Thermal Properties of Si₃N₄-Based Materials" Materials 16, no. 5: 2079. https://doi.org/10.3390/ma16052079

APA Style

Gizowska, M., Piątek, M., Perkowski, K., & Antosik, A. (2023). Influence of Sintering Conditions and Nanosilicon Carbide Concentration on the Mechanical and Thermal Properties of Si₃N₄-Based Materials. Materials, 16(5), 2079. https://doi.org/10.3390/ma16052079

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Menu

Influence of Sintering Conditions and Nanosilicon Carbide Concentration on the Mechanical and Thermal Properties of Si₃N₄-Based Materials

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Further Information

Guidelines

MDPI Initiatives

Follow MDPI