Highly compressible and stretchable ceramic aerogels with nanofiber-nanosheet binary synergistic structure for thermal insulation in extreme environments

被引：8

作者：

Cheng, Xiaota ^{[1
]}

Chang, Xinyi ^{[1
]}

Liao, Yalong ^{[2
]}

Pan, Kai ^{[3
]}

Zhang, Xinxin ^{[1
]}

Fong, Hao ^{[1
]}

Wang, Fei ^{[1
]}

Yu, Jianyong ^{[1
]}

Liu, Yi-Tao ^{[1
]}

Ding, Bin ^{[1
]}

机构：

[1] Donghua Univ, Coll Text, Innovat Ctr Text Sci & Technol, Shanghai 201620, Peoples R China

[2] Aerosp Inst Adv Mat & Proc Technol, Beijing 100074, Peoples R China

[3] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Beijing 100029, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2024年 / 50卷 / 05期

关键词：

Mullite nanofiber aerogels; Nanosheet; Compressible; Stretchable; Thermal insulation; GRAPHENE AEROGELS; ULTRALIGHT; POLYMERS;

D O I：

10.1016/j.ceramint.2023.12.037

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ceramic aerogels are ideal candidates for thermal insulation in extreme environments because of their high porosity, low thermal conductivity, and chemical and thermal inertness. However, the intrinsic rigidity and brittleness of ceramic aerogels hinder their practical application. In this study, we designed a composite mullite aerogel with a nanofiber-nanosheet binary synergistic structure to obtain superior thermal insulation properties and robust mechanical performance. Composite aerogels were manufactured by combining electrospinning and freeze-drying. They exhibited superior temperature-invariant compressibility, flexibility, stretchability, fatigue tolerance, and thermal insulation performance. Our study will enable the innovative design of mechanically reliable ceramics for numerous extreme applications ranging from battery protection to space exploration.

引用

页码：7451 / 7457

页数：7

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