Metamaterials with a controllable thermal-mechanical stability: Mechanical designs, theoretical predictions and experimental demonstrations

• DOI: 10.1016/j.compscitech.2021.108694
• Publication Date: 2021-02-05T07:33:37Z
• Authors: Huabin Yu; Bo Liang; Zifen Zhao; Panpan Liu; Hongshuai Lei; Weili Song; Mingji Chen; Xiaogang Guo
• Keywords: Thermal Stability; Negative Thermal Expansion

Abstract Mechanical metamaterials with tunable thermal expansion are of increasing interest due to their capability for matching the thermal expansion of surrounding components to maintain high-level thermal-mechanical stability upon a temperature change and show their promising applications in the fields of flexible electronics, aerospace, MEMS, and precision instruments. Though numerous of studies on metamaterials with zero thermal expansion of coefficient (CTE) has been developed to access these demands, the experimentally demonstrated designs with a remarkable zero CTE value (e.g.