Tailoring Structural, Mechanical, and Electronic Properties of (Ti0.25Ta0.25Zr0.25Nb0.25-La )C High-Entropy Carbide Ceramics via Rare-Earth La Incorporation: A Comprehensive First-Principles Study DOI
Zhipeng Wang,

Zhao-Wen Yu,

Linkun Zhang

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

High-Temperature Mechanical Properties and Ablation Resistance of 2.5D Shallow Straight-Joint SiO2f/SiO2 Composites DOI

Xisheng Xia,

Ji’an Duan, Bangxiao Mao

et al.

Silicon, Journal Year: 2025, Volume and Issue: unknown

Published: March 13, 2025

Language: Английский

Citations

0
Lattice‐Distortion‐Driven Reduced Lattice Thermal Conductivity in High‐Entropy Ceramics DOI Creative Commons
Yiwen Liu,

Yaming Fu,

Fangchao Gu

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Lattice distortion and mass fluctuation are two long-believed potential mechanisms for the reduced lattice thermal conductivity in high-entropy ceramics (HECs). However, related studies remain unclear. Taking diborides (HEBs) as prototype, lattice-distortion-driven HECs is uncovered, whereas influence of neglectable. Specifically, groups HEBs designed by regulating based on machine-learning-potential-based molecular dynamics simulations. The theoretical experimental results show that plays a pivotal role modulating HEBs, while Further find aggravation enables reduction through decreased phonon velocity Debye temperature resulting from simultaneously enhanced scattering strain field bond strength fluctuation. In addition, found to lower electronic competing with vacancies. research unravels long-standing mystery offers insightful guidance developing ultra-low conductivities.

Language: Английский

Citations

0
A facile fine-grain strategy to fabricate (Ta0.2Nb0.2Ti0.2Hf0.2Zr0.2)C-SiC ceramics with enhanced strength and toughness DOI

Tianzhan Shen,

Cuiyan Li,

Haibo Ouyang

et al.

Materials Science and Engineering A, Journal Year: 2025, Volume and Issue: unknown, P. 148125 - 148125

Published: Feb. 1, 2025

Language: Английский

Citations

0
Competition between strong and weak carbide-forming elements in monolayer mixed oxide formation on (TiZrNbMoAl)C: Experimental and first-principles study DOI
Lin Tang, Qian Pan,

Kangkai Yan

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0
Tailoring Structural, Mechanical, and Electronic Properties of (Ti0.25Ta0.25Zr0.25Nb0.25-La )C High-Entropy Carbide Ceramics via Rare-Earth La Incorporation: A Comprehensive First-Principles Study DOI
Zhipeng Wang,

Zhao-Wen Yu,

Linkun Zhang

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Citations

0