Abstract
The electromagnetic interference (EMI) shielding of dense Ti3AlC2 ceramics with distinct microstructures were investigated up to 800°C. Ti3AlC2 exhibits high EMI shielding effectiveness (SE) around 30dB which was mainly attributed to high electrical conductivity and complex permittivity. Besides, the EMI shielding were sensitive to the microstructure. Ti3AlC2 with high aspect ratio grains and certain degree of texture were preferred for high SE indicating that the typical layered structure also contributes to the high shielding capability. These results indicate that layered Ti3AlC2 ceramics could be considered as promising structural EMI shielding materials at high temperatures.
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