Effect of Heat Treatment on the Microstructure and Mechanical Properties of Carbonyl Iron-based Wave Absorbing Coatings
DENG Yan1, HONG Sen1, CAO Xiangjie1, JIANG Yaonian2, DAI Cuiying1,2, MAO Weiguo1,2,*, ZHANG Youwei3,*, LIU Pinggui3
1 School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, Hunan, China 2 School of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410014, China 3 Stealth & Coatings Institute, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
Abstract: It is of great significance to study the microstructure and properties evolution of carbonyl iron composite absorbing coating materials in the service temperature range to reveal the failure mechanism and optimize the process parameters. In this work, the carbonyl iron/polysilazane wave-absorbing coatings were prepared by the air spraying method and heat-treated at 550 ℃ for different time. The properties of infrared absorption, phase composition, microstructure, and hardness of the coating before and after heat treatments were analyzed. The tensile tests were carried out by a universal testing machine. The results show that the average adhesive strength of the coating reaches (11.88±1.10) MPa at 550 ℃ for 80 h, the hardness is 104.56HV±22.97HV for 400 h.
邓妍, 洪森, 曹湘杰, 蒋曜年, 戴翠英, 毛卫国, 张有为, 刘平桂. 热处理对羰基铁基吸波涂层微观结构和力学性能的影响[J]. 材料导报, 2024, 38(1): 22040113-6.
DENG Yan, HONG Sen, CAO Xiangjie, JIANG Yaonian, DAI Cuiying, MAO Weiguo, ZHANG Youwei, LIU Pinggui. Effect of Heat Treatment on the Microstructure and Mechanical Properties of Carbonyl Iron-based Wave Absorbing Coatings. Materials Reports, 2024, 38(1): 22040113-6.
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2024, Vol. 38 
