Atomic-Scale Layer-by-Layer Deposition of Fe SiAl@ZnO@Al_(2)O_(3) Hybrid with Threshold Anti-Corrosion and Ultra-High Microwave Absorption Properties in Low-Frequency Bands

作     者：Wei Tian Jinyao Li Yifan Liu Rashad Ali Yang Guo Longjiang Deng Nasir Mahmood Xian Jian Wei Tian;Jinyao Li;Yifan Liu;Rashad Ali;Yang Guo;Longjiang Deng;Nasir Mahmood;Xian Jian

作者机构：National Engineering Researching Centre of Electromagnetic Radiation Control MaterialsKey Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of EducationState Key Laboratory of Electronic Thin Films and Integrated DevicesSchool of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China School of Electronic Science and EngineeringThe Yangtze Delta Region Institute HuzhouUniversity of Electronic Science and Technology of ChinaHuzhou 313001People’s Republic of China School of Materials and EnergyUniversity of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China School of Electrical and Information EngineeringPanzhihua UniversityPanzhihua 617000People’s Republic of China School of EngineeringRMIT UniversityMelbourneVictoria 3001Australia 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2021年第13卷第10期

页      面：308-321页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：financially supported by the National Natural Science Foundation of China(No.51972045,5197021414) the Fundamental Research Funds for the Chinese Central Universities,China(No.ZYGX2019J025) Sichuan Science and Technology Program(No.2020JDRC0015 and No.2020JDRC0045) Sichuan Science and Technology Innovation Talent Project(No.2021JDRC0021) the Vice-Chancellor fellowship scheme at RMIT University the RMIT Micro Nano Research Facility(MNRF)in the Victorian node of the Australian National Fabrication Facility(ANFF) the RMIT Microscopy and Microanalysis Facility(RMMF)to support this work 

主　　题：Atomic layer deposition Magnetic alloy Dual-oxide-shells Microwave absorption Anti-corrosion 

摘      要：Developing highly efficient magnetic microwave absorb-ers(MAs)is crucial,and yet challenging for anti-corrosion properties in extremely humid and salt-induced foggy ***,a dual-oxide shell of ZnO/Al_(2)O_(3) as a robust barrier to FeSiAl core is introduced to mitigate corrosion *** FeSiAl@ZnO@Al_(2)O_(3) layer by layer hybrid structure is realized with atomic-scale precision through the atomic layer deposition *** to the unique hybrid structure,the FeSiAl@ZnO@Al_(2)O_(3) exhibits record-high micro-wave absorbing performance in low-frequency bands covering L and S bands with a minimum reflection loss(RLmin)of-50.6 dB at 3.4 *** with pure FeSiAl(RLmin of-13.5 dB,a bandwidth of 0.5 GHz),the RLmin value and effective bandwidth of this designed novel absorber increased up to~3.7 and~3 times,***-thermore,the inert ceramic dual-shells have improved 9.0 times the anti-corrosion property of FeSiAl core by multistage barriers towards corrosive medium and obstruction of the electric *** is attributed to the large charge transfer resistance,increased impedance modulus|Z|0.01 Hz,and frequency time constant of FeSiAl@ZnO@Al_(2)O_(3).The research demonstrates a promising platform toward the design of next-generation MAs with improved anti-corrosion properties.