Preparation of SiC@Al2O3–Y2O3 core-shell nanoparticles by a slow precipitation method for dense SiC sintering

Liu, Yiteng; Chen, Zhao; Liu, Rongzheng; Zhao, Jian; Liu, Malin

doi:10.1016/j.ceramint.2020.06.237

Cited by 4 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…SiC nw /SiC CMCs can reduce the sintering temperature and achieve low‐temperature sintering by introducing the sintering aids. In particular, oxide sintering additives can form liquid intermetallic compounds during sintering and promote the densification of composites 31 . The SiC nw /SiC CMC prepared in this study was densified by Al 2 O 3 ‐Y 2 O 3 , forming YAG molten liquid phase at high temperature.…”

Section: Resultsmentioning

confidence: 93%

“…In particular, oxide sintering additives can form liquid intermetallic compounds during sintering and promote the densification of composites. 31 The SiC nw /SiC CMC prepared in this study was densified by Al 2 O 3 -Y 2 O 3 , forming YAG molten liquid phase at high temperature. As shown in Figure 9, the mechanical properties of the samples increased first and then decreased with the increase of the sintering aid content.…”

Section: Effects Of Sintering Additive Content On Mechanical Properti...mentioning

confidence: 92%

See 1 more Smart Citation

Microstructure and strengthening behavior in high content SiC nanowires reinforced SiC composites

et al. 2023

View full text Add to dashboard Cite

In this study, the high-content SiC nw reinforced SiC ceramic matrix composites (SiC nw /SiC CMC) were successfully fabricated by hot pressing β-SiC and sintering additive (Al 2 O 3 -Y 2 O 3 ) with boron nitride interphase modification SiC nw . The effects of sintering additive content and mass fraction (5-25 wt%) of SiC nw on the density, microstructure, and mechanical properties of the composites were investigated. The results showed that with the increase of sintering additives from 10 wt% to 12 wt%, the relative density of the SiC nw /SiC CMC increased from 97.3% to 98.9%, attributed to the generated Y 3 Al 5 O 12 (YAG) liquid phase from the Al 2 O 3 -Y 2 O 3 that promotes the rearrangement and migration of SiC grains. The comprehensive performance of the obtained composite with 15 wt% SiC nw possessed the optimal flexural strength and fracture toughness of 524 ± 30.24 MPa and 12.39 ± 0.49 MPa⋅m 1/2 , respectively. Besides, the fracture mode of the composites with 25 wt% SiC nw content revealed a pseudo-plastic fracture behavior. It concludes that the 25 wt% SiC nw /SiC CMC was toughened by the fiber pull-outs, debonding, bridging, and crack deflection that can consume plenty of fracture energy. The strategy of SiC nanowires worked as a main bearing phase for the fabrication of SiC/SiC CMC providing critical information for understanding the mechanical behavior of high toughness and high strength SiC nanoceramic matrix composites.

show abstract

Section: Resultsmentioning

confidence: 93%

Section: Effects Of Sintering Additive Content On Mechanical Properti...mentioning

confidence: 92%

Microstructure and strengthening behavior in high content SiC nanowires reinforced SiC composites

et al. 2023

View full text Add to dashboard Cite

show abstract

Effects of Sintering Additives on Microstructure and Mechanical Properties of Hot-Pressed α-SiC Ceramics

Zhu

Qin

Chai

et al. 2022

Metall Mater Trans A

View full text Add to dashboard Cite

Designing core–shell LiNi0.5Mn1.5O4-based cathode materials with enhanced rate capability and improved cycling stability

Hsiao,

Huang,

Liu

et al. 2025

Applied Surface Science

View full text Add to dashboard Cite

Preparation of SiC@Al2O3–Y2O3 core-shell nanoparticles by a slow precipitation method for dense SiC sintering

Cited by 4 publications

References 27 publications

Microstructure and strengthening behavior in high content SiC nanowires reinforced SiC composites

Microstructure and strengthening behavior in high content SiC nanowires reinforced SiC composites

Effects of Sintering Additives on Microstructure and Mechanical Properties of Hot-Pressed α-SiC Ceramics

Designing core–shell LiNi0.5Mn1.5O4-based cathode materials with enhanced rate capability and improved cycling stability

Contact Info

Product

Resources

About