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金属学报 2006
MICROWAVE ABSORBING CAPABILITY OF FeSiAlCr NANO-CRYSTALLINE FLAKES
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Abstract:
Nanocrystalline flakes of Fe85Si1Al6Cr8 alloy were synthesized by atomization process and high energy ball milling. The effect of process conditions on the microstructure, morphology and microwave electromagnetic characteristics of Fe85Si1Al6Cr8 particles were investigated. Results show that the flaky morphology and nanocrystalline microstructure remarkably improved the microwave permeability and the permittivity was controlled effectively. The sequent annealing improved further the microwave electromagnetic performances. The coating layer made of the nanocrystalline Fe85Si1Al6Cr8 flakes has good microwave absorbing ability at 4 GHz microwave range.