Structural design of the multi-layer SiC nanofiber composite aerogel felt for applications in high-temperature thermal-insulating refractories

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-03-13 DOI:10.1016/j.jeurceramsoc.2025.117370

Jinyu Guo, Jianjun Chen, Jinxia Li, Hafsa, Hao Chen

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Abstract

In order to improve the high-temperature resistance and thermal insulation of SiC nanofiber aerogel, the structural design and preparation of SiC nanofiber composite aerogel felt were carried out based on the heat transfer mechanism. A novel multi-layer SiC nanofiber aerogel felt was prepared with the ablative layer (ZrO₂/ZrSiO₄ anti-oxidation layer), opacifiers layer (TiO₂ and SiC), and heat insulation layer (SiC nanowire aerogel). Compared with the single SiC nanowire aerogel, the oxidation resistance temperature of SiC nanofiber composite aerogel felt increased from 1300 ℃ to 1500 ℃ during aerobic calcination. With the butane gun ablation, the back temperature of the single SiC nanofiber aerogel felt was 308 ℃, while the back temperature of the composite aerogel felt was only 130 ℃. The structural design of the multi-layer SiC nanofiber composite aerogel felt provides an approach to improving thermal insulation properties in extreme environments.

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用于高温隔热耐火材料的多层碳化硅纳米纤维复合气凝胶毡的结构设计

为了提高碳化硅纳米纤维气凝胶的耐高温和绝热性能，基于传热机理对碳化硅纳米纤维复合气凝胶毡进行了结构设计和制备。采用烧蚀层（ZrO2/ZrSiO4抗氧化层）、不透明层（TiO2和SiC）和隔热层（SiC纳米线气凝胶）制备了新型多层SiC纳米纤维气凝胶毡。与单根碳化硅纳米线气凝胶相比，碳化硅纳米纤维复合气凝胶毡在好氧煅烧过程中的抗氧化温度由1300℃提高到1500℃。丁烷枪烧蚀后，单根碳化硅纳米纤维气凝胶毡的背温为308℃，而复合气凝胶毡的背温仅为130℃。多层碳化硅纳米纤维复合气凝胶毡的结构设计为提高极端环境下的保温性能提供了一种途径。

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来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.