Comprehensive Experimental Design of Absorbing Materials Based on Broadband Modulation

CoNi/rGO microwave absorber were easily prepared by a polar solvothermal method. The absorbing bandwidth and absorbing strength could be modulate effectively by morphology adjustment and composite with graphene. Finally, a new microwave absorbing material with thin thickness, light weight, wide frequency band and strong absorption was obtained. This comprehensive experiment involves the whole experimental process of synthesis, measure and analysis, covering the knowledge of solid state physics, electromagnetism, material analysis and testing methods, chemical synthesis. The subject is focusing on research hotspots and applying to practical applications, integrate teaching and research, stimulates students' enthusiasm and interest. The experiment innovatively puts forward a multi-link and multi-dimensional assessment model, this all-round assessment could polish students' experimental literacy, and exercise their independent thinking and innovative practice ability.