SiCN@Fe复合吸波涂层高温原位拉伸测试分析

doi:10.11896/cldb.23050156

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Abstract In-situ characterization of the mechanical properties of SiCN@Fe composite wave absorbing coating at different temperatures provides an important reference for the application prospects and environment of the coatings. In this work, SiCN@Fe composite wave absorbing coating was prepared by air spraying method, and it's tensile fracture behaviour was characterized by an in-situ test system based on digital image correlation technique. The results showed that, with the increasing of temperature, the elasticity modulus of the coating decreased from 54 GPa at room temperature to 47 GPa at 600 ℃, while the tensile strength and fracture toughness increased significantly from 52.81 MPa and 4.65 MPa·m^1/2 at room temperature to 178 MPa and 6.54 MPa·m^1/2 at 600 ℃, respectively. The toughness transformation of SiCN amorphous ceramics in high temperature environment and the stable skeleton structure of Fe powder filler are the main reasons for the good tensile strength and fracture toughness of SiCN@Fe composite wave absorbing coating.

Key words： SiCN polymer derived ceramics microwave absorbing coatings digital image related technology high temperature stretching

Published: 10 February 2025 Online: 2025-02-05

CLC number:

TB32

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	Articles by authors
	JIANG Yaonian
	LIU Huan
	ZHONG Zhentao
	HE Zeqian
	MAO Weiguo
	DAI Cuiying
	ZHANG Youwei
	LIU Pinggui

Cite this article:

JIANG Yaonian,LIU Huan,ZHONG Zhentao, et al. Analysis of SiCN@Fe Composite Wave Absorbing Coatings for High Temperature In-situ Tensile Testing[J]. Materials Reports, 2025, 39(3): 23050156-5.

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http://www.mater-rep.com/EN/10.11896/cldb.23050156 OR http://www.mater-rep.com/EN/Y2025/V39/I3/23050156

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