| Title: |
An isotropic zero thermal expansion alloy with super-high toughness |
| Authors: |
Chengyi Yu, Kun Lin, Qinghua Zhang, Huihui Zhu, Ke An, Yan Chen, Dunji Yu, Tianyi Li, Xiaoqian Fu, Qian Yu, Li You, Xiaojun Kuang, Yili Cao, Qiang Li, Jinxia Deng, Xianran Xing |
| Source: |
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024) |
| Publisher Information: |
Nature Portfolio, 2024. |
| Publication Year: |
2024 |
| Collection: |
LCC:Science |
| Subject Terms: |
Science |
| More Details: |
Abstract Zero thermal expansion (ZTE) alloys with high mechanical response are crucial for their practical usage. Yet, unifying the ZTE behavior and mechanical response in one material is a grand obstacle, especially in multicomponent ZTE alloys. Herein, we report a near isotropic zero thermal expansion (α l = 1.10 × 10−6 K−1, 260–310 K) in the natural heterogeneous LaFe54Co3.5Si3.35 alloy, which exhibits a super-high toughness of 277.8 ± 14.7 J cm−3. Chemical partition, in the dual-phase structure, assumes the role of not only modulating thermal expansion through magnetic interaction but also enhancing mechanical properties via interface bonding. The comprehensive analysis reveals that the hierarchically synergistic enhancement among lattice, phase interface, and heterogeneous structure is significant for strong toughness. Our findings pave the way to tailor thermal expansion and obtain prominent mechanical properties in multicomponent alloys, which is essential to ultra-stable functional materials. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2041-1723 |
| Relation: |
https://doaj.org/toc/2041-1723 |
| DOI: |
10.1038/s41467-024-46613-0 |
| Access URL: |
https://doaj.org/article/af09c2f1b49b4b5fa53c73c3e2f832e5 |
| Accession Number: |
edsdoj.f09c2f1b49b4b5fa53c73c3e2f832e5 |
| Database: |
Directory of Open Access Journals |
