In SituFormation of Fe3O4/La2O3Coating on the Surface of Carbonaceous Nonwoven to Improve Its Electromagnetic Wave Absorption Property

被引：8
作者：
Long, Xiaoyun [1 ,2 ]
He, LiFen [3 ]
Ye, Wei [1 ,2 ]
Sun, Qilong [1 ,2 ]
机构：
[1] Nantong Univ, Coll Text & Clothing, Nantong, Peoples R China
[2] Nantong Univ, Natl & Local Joint Engn Res Ctr Tech Fiber Compos, Nantong, Peoples R China
[3] Nantong Text & Silk Ind Technol Res Inst, Nantong, Peoples R China
来源：
JOURNAL OF ELECTRONIC MATERIALS | 2020年 / 49卷 / 11期
关键词：
Carbonaceous nonwoven; Fe3O4; La(2)O(3)coating; EM wave-absorbing material; XPS ANALYSIS; BROAD-BAND; NANOPARTICLES; FABRICATION; COMPOSITE; POLARIZATION; DENSITY;
D O I：
10.1007/s11664-020-08437-8
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A coating consisting of Fe3O4/La(2)O(3)mixed particles has been prepared and applied to the surface of carbonaceous nonwoven (CNW) using immersion and calcination processes to improve its electromagnetic (EM) wave absorption property. The surface phase composition, surface morphology, and surface chemical composition of the CNW and the effect of the coating preparation parameters on its EM wave-absorbing property were investigated. The results revealed that the coating was uniformly deposited on the surface of CNW through immersion and calcination. Moreover, the EM wave-absorbing property could be regulated by adjusting the molar mass ratio of FeCl(3)to LaCl3, total molar mass, and calcination temperature. The modified CNW obtained with a molar mass ratio of FeCl(3)to LaCl(3)of 8:2, total molar mass of 0.625 mol/L, and calcination temperature of 750 degrees C showed excellent EM wave-absorbing property with an effective bandwidth of 5.9 GHz and lowest reflection loss of -31.3 dB for a thickness of 3 mm.
引用
收藏
页码：6611 / 6621
页数：11
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