Design of multilayer cauliflower-like structure SiO2/SiC–Y2Si2O7 composite ceramics as high-efficiency electromagnetic wave absorbers

Core–shell Si3N4@WS2 porous ceramics with improved electromagnetic wave absorption performance

“…4,5 Ceramic-based absorbing materials show promising application potential in the field of EMW absorption because of their low density, tunable dielectric properties, and high mechanical strength. [6][7][8] Different wave-loss phases (C, 9 SiC, 10,11 Mexne 12,13 ) and wave-transmitting phases (Si 3 N 4 , 14 Al 2 O 3 , 15,16 RE 2 Si 2 O 7 17 ) are often combined to synergize multiple EMW loss mechanisms. This is considered is an effective strategy to improve the EMW absorption performance of materials, such as Ti-C x -N 1Àx /Si 3 N 4 , 13 and SiCN(Fe)/Al 2 O 3 .…”

“…Different wave-loss phases (C, 9 SiC, 10,11 Mexne 12,13 ) and wave-transmitting phases (Si 3 N 4 , 14 Al 2 O 3 , 15,16 RE 2 Si 2 O 7 17 ) are often combined to synergize multiple EMW loss mechanisms. This is considered is an effective strategy to improve the EMW absorption performance of materials, such as Ti-C x -N 1− x /Si 3 N 4 , 13 and SiCN(Fe)/Al 2 O 3 .…”