不同吸波掺料对碳化钢渣微波加热性能的影响OA北大核心CSTPCD

To improve the microwave absorbing ability,nano-Fe3O4,printing toner and carbonyl iron powder are used in the carbonated steel slag specimens as microwave absorbing admixtures.The basic mechanical properties,microwave heating performance,and porosity of carbonated steel slag specimens with different absorbing admix-tures are tested.The results show that the microwave heating effect of carbonated steel slag specimens can be ef-fectively improved by the increasing content of carbonyl iron powder,nano-Fe3O4,and printing toner.At the same dosage,the effect of carbonyl iron powder is the best,and that of printing toner is the weakest.Before and after microwave heating,with the increase of the content of the absorbing admixtures,the compressive strength of carbonated steel slag specimens with nano-Fe3O4 and printing toner decreases directly,and that of carbonated steel slag specimens with carbonyl iron powder increases first and then decreases.Considering both mechanical properties and microwave heating performance,carbonyl iron powder is the optimal choice for microwave absorbing admixture.Furthermore,the mechanism of different absorbing admixtures on the mechanical properties and micro-wave heating performance of carbonated steel slag specimens is also analyzed.