Preparation and Properties of Magnesium Oxysulfide Foam Cement Microwave Absorbing Material
CUI Baodong
LIU Jun
LI Siqi
LI Yao
DENG Yonggang
Abstract：Ferrite and silicon carbide with excellent electromagnetic microwave absorption performance were used to modify magnesium oxysulfide cement foam plate.The influence of different doping amount of ferrite and silicon carbide on the microwave absorbing perfermance of modified magnesium oxysulfate cement was studied.The effect mechanism was analyzed by X-ray diffraction and scanning electron microscopy.The results show that in the target frequency band of 3.95-18.00 GHz,5%silicon carbide can make the material reach the lowest reflectivity,which is-15.9 dB at 8.40 GHz.15%ferrite can make the material reach the lowest reflectivity,which is-17.3 dB at 7.04 GHz.The modified magnesium oxysulfide cement has good microwave absorbing perfermance when ferrite and silicon carbide were added to the magnesium oxysulfide cement matrix at a certain proportion.
Keywords：magnesium oxysulfide cementsilicon carbideferritemicrowave absorbing performance
Publication Date：2024-04-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 291-298 )