摘要
Aerogels with excellent properties combination of ultralow density and great thermal insulation are drawing attention to applications in harsh conditions.Common aerogels,however,are usually constructed with nanoparticles with a weakness in physical combination.The silicon carbide nano wire(SiC_(NW)) is a kind of one-dimensional(1D) nano wire possessing the promising properties of flexibility,great thermal insulation,and stability at high temperatures.An aerogel constructed by the SiC_(NW) will produce a great material with a promising material,the amazing SiC_(NW) aerogel.Here,a novel SiC_(NW) aerogel was fabricated consisting of quantities of β-SiC_(NW) of15-40 nm in diameter and tens to hundreds of micrometers in length.This SiC_(NW) aerogel possessed an ultralow density of 5.82 mg·cm^(-3),high-temperature resistance,and great thermal insulation with its thermal conductivities of0.063 W·m^(-1)·K^(-1) at 100℃ and 0.243 W·m^(-1)·K^(-1) at900℃ in He.Furthermore,the thermal insulation applicability of this aerogel was simulated.This study provides a promising way for designing and fabricating other multifunctional nanowire aerogels for high-temperature thermal insulation.
出处
《Rare Metals》
SCIE
EI
CAS
CSCD
2023年第10期3354-3363,共10页
稀有金属(英文版)
基金
financially supported by the Talent Introduction Project Foundation of Nantong University (No. 135421615077)
the Large Instruments Open Foundation of Nantong University (No. KFJN2237)
the Fundamental Research Funds for the Central Universities (No. D5000210522)
China Postdoctoral Science Foundation (No. 2021M702665)
the Natural Science Foundation of Shaanxi Province (No. 2022JQ-482)
Jiangsu Planned Projects for Postdoctoral Research Fund
Basic Research Programs of Taicang (No. TC2021JC01)
2022 Suzhou Association for Science and Technology Youth Science and Technology Talent Support Project Fund。