Abstract
Multicomponent alloying has displayed extraordinary potential for producing exceptional structural and functional materials. However, the synthesis of single-phase, multi-principal covalent compounds remains a challenge. Here, we present a diffusion-controlled alloying strategy for the realization of covalent multi-principal transition metal carbides (MPTMCs) with a single face-centered cubic phase. The increased interfacial diffusion promoted by the addition of a nonstoichiometric compound leads to rapid formation of the single phase at much lower sintering temperature. Direct atomic-level observations via scanning transmission electron microscopy demonstrate that MPTMCs are composed of a single phase with a random distribution of all cations, which holds the key to the unique combinations of improved fracture toughness, superior Vickers hardness, and extremely lower thermal diffusivity achieved in MPTMCs. The present discovery provides a promising approach toward the design and synthesis of next-generation high-performance materials.
Bibliography
Peng, C., Gao, X., Wang, M., Wu, L., Tang, H., Li, X., Zhang, Q., Ren, Y., Zhang, F., Wang, Y., Zhang, B., Gao, B., Zou, Q., Zhao, Y., Yang, Q., Tian, D., Xiao, H., Gou, H., Yang, W., ⦠Mao, H. (2019). Diffusion-controlled alloying of single-phase multi-principal transition metal carbides with high toughness and low thermal diffusivity. Applied Physics Letters, 114(1).
Authors
22
- Chong Peng (first)
- Xiang Gao (additional)
- Mingzhi Wang (additional)
- Lailei Wu (additional)
- Hu Tang (additional)
- Xiaomin Li (additional)
- Qian Zhang (additional)
- Yang Ren (additional)
- Fuxiang Zhang (additional)
- Yuhui Wang (additional)
- Bing Zhang (additional)
- Bo Gao (additional)
- Qin Zou (additional)
- Yucheng Zhao (additional)
- Qian Yang (additional)
- Dongxia Tian (additional)
- Hong Xiao (additional)
- Huiyang Gou (additional)
- Wenge Yang (additional)
- Xuedong Bai (additional)
- Wendy L. Mao (additional)
- Ho-kwang Mao (additional)
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Dates
Type | When |
---|---|
Created | 6 years, 7 months ago (Jan. 8, 2019, 8:35 a.m.) |
Deposited | 2 years, 1 month ago (Aug. 2, 2023, 5:59 p.m.) |
Indexed | 1 month ago (July 30, 2025, 7:13 a.m.) |
Issued | 6 years, 7 months ago (Jan. 7, 2019) |
Published | 6 years, 7 months ago (Jan. 7, 2019) |
Published Online | 6 years, 7 months ago (Jan. 8, 2019) |
Published Print | 6 years, 7 months ago (Jan. 7, 2019) |
Funders
8
China Postdoctoral Special Funding
Awards
1
- 2015T80895
Heavy Machinery Synergy Innovation
Awards
1
- ZX01-20140100-01
Heibei Provience First Batch of Young Talent Support Plan
Awards
1
- the second supportcycle,No.(2016)9
National Science Foundation of Heibei Provience
Awards
1
- E2015203232
Natural Science Foundation of Heibie Provience
Awards
1
- E2016203425
Science and Technology Research Youth Fund of Colledges and University of Heibei Provience
Awards
1
- QN20131092
Stanford Institute for Materials and Energy Sciences
Awards
1
- DE-AC02-76SF00515
National Natural Science Foundation of China
10.13039/501100001809
Region: Asia
gov (National government)
Labels
11
- Chinese National Science Foundation
- Natural Science Foundation of China
- National Science Foundation of China
- NNSF of China
- NSF of China
- 国家自然科学基金委员会
- National Nature Science Foundation of China
- Guójiā Zìrán Kēxué Jījīn Wěiyuánhuì
- NSFC
- NNSF
- NNSFC
Awards
2
- No. U1530402
- No. 51201148
@article{Peng_2019, title={Diffusion-controlled alloying of single-phase multi-principal transition metal carbides with high toughness and low thermal diffusivity}, volume={114}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.5054954}, DOI={10.1063/1.5054954}, number={1}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Peng, Chong and Gao, Xiang and Wang, Mingzhi and Wu, Lailei and Tang, Hu and Li, Xiaomin and Zhang, Qian and Ren, Yang and Zhang, Fuxiang and Wang, Yuhui and Zhang, Bing and Gao, Bo and Zou, Qin and Zhao, Yucheng and Yang, Qian and Tian, Dongxia and Xiao, Hong and Gou, Huiyang and Yang, Wenge and Bai, Xuedong and Mao, Wendy L. and Mao, Ho-kwang}, year={2019}, month=jan }