Details

Autor(en) / Beteiligte

• Gao, Huai-Ling
• Zhu, Yin-Bo
• Mao, Li-Bo
• Wang, Feng-Chao
• Luo, Xi-Sheng
• Liu, Yang-Yi
• Lu, Yang
• Pan, Zhao
• Ge, Jin
• Shen, Wei
• Zheng, Ya-Rong
• Xu, Liang
• Wang, Lin-Jun
• Xu, Wei-Hong
• Wu, Heng-An
• Yu, Shu-Hong

Titel

Super-elastic and fatigue resistant carbon material with lamellar multi-arch microstructure

Ist Teil von

• Nature communications, 2016-09, Vol.7 (1), p.12920-12920, Article 12920

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2016

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Low-density compressible materials enable various applications but are often hindered by structure-derived fatigue failure, weak elasticity with slow recovery speed and large energy dissipation. Here we demonstrate a carbon material with microstructure-derived super-elasticity and high fatigue resistance achieved by designing a hierarchical lamellar architecture composed of thousands of microscale arches that serve as elastic units. The obtained monolithic carbon material can rebound a steel ball in spring-like fashion with fast recovery speed (∼580 mm s ), and demonstrates complete recovery and small energy dissipation (∼0.2) in each compress-release cycle, even under 90% strain. Particularly, the material can maintain structural integrity after more than 10 cycles at 20% strain and 2.5 × 10 cycles at 50% strain. This structural material, although constructed using an intrinsically brittle carbon constituent, is simultaneously super-elastic, highly compressible and fatigue resistant to a degree even greater than that of previously reported compressible foams mainly made from more robust constituents.