From binary to ternary and back to binary:Transition of electromagnetic wave shielding to absorption among MAB phase Ni_(3)ZnB_(2)and corresponding binary borides Nin+1Bn(n=1,3)
作者机构：School of Material Science and EngineeringZhengzhou UniversityZhengzhou 450001China Henan Vocational College of Information and StatisticsZhengzhou 450008China School of Material Science and EngineeringLuoyang Institute of Science and TechnologyLuoyang 471023China State Key Laboratory of Advanced RefractoriesSinosteel Luoyang Institute of Refractories Research Co.Ltd.Luoyang 471039China
出 版 物：《Journal of Advanced Ceramics》 (先进陶瓷（英文）)
年 卷 期：2023年第12卷第11期
页 面：2101-2111页
核心收录：
学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：supported by the National Natural Science Foundation of China(No.U2004177) Henan Province Key Research Project for Higher Education Institutions(No.23B430017) the Outstanding Youth Fund of Henan Province(No.212300410081) the Science and Technology Innovation Talents in Universities of Henan Province(CN)(No.22HASTIT001)
主 题：nickel borides Ni_(3)ZnB_(2) electromagnetic wave(EMW)shielding properties electromagnetic wave absorbing properties
摘 要：Due to chemical inertness of nickel and boron,the preparation of nickel borides and corresponding layered ternary transition metal borides Ni_(3)ZnB_(2)(MAB phase)has always required high-temperature and/or high-pressure ***,an innovative and efficient approach to preparing Ni_(3)ZnB_(2)at only 600℃and without applied pressure is presented in this *** is discovered that by simply adjusting the temperature,a phase transition from Ni_(3)ZnB_(2)to Ni4B3 with a layered structure could be *** transition between the binary-component and the ternary-component brings about significant variation in electromagnetic wave(EMW)shielding/absorption performance of prepared *** instance,Ni2B has good EMW shielding performance(42.54 dB in X band)and Ni_(3)ZnB_(2)is of weak EMW shielding(13.43 dB in X band);Ni_(3)ZnB_(2)has poor EMW absorption performance(−5 dB)while Ni4B3 has excellent EMW absorption performance(−45.19 dB)at a thickness of 2.7 mm with effective absorption bandwidth(10.4 GHz).
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