2024 PHD-10 ONGOING
Release time: 2024/07/25 Publisher： original Views：
Preparation and mechanism of carbon black/cement based electromagnetic wave absorbing materials with multimechanism
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Ph.D Student: Wu Zihao |
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Project Background:
As a typical petroleum-based material, carbon black (CB) has strong conductivity, high dielectric loss and low price, and has broad application prospects in electromagnetic wave (EMW) shielding building materials. The resonant cavity is an important EMW loss structure in cement-based absorbing materials, but there is a lack of research on the influence and action mechanism of CB on the resonant cavity structure, and the cement matrix lacks macro-structural optimization design, and the absorption mechanism is not clear. The application of CB in cement-based materials is limited, and the absorption performance of cement-based materials urgently needs to be improved.
Aims & Goals:
1. To reveal the impact of CB on the resonant cavity parameters of the cement matrix, establish the relationship between CB and the resonant structure, and clarify the regulation laws of the resonant structure.
2. To explore the relationship between the resonant cavity parameters and EM performance, clarify the influence mechanism of CB on EMW protection performance, and overcome the application difficulties of CB.
3. To reveal the relationship between multi-scale resonant structures and absorption performance, as well as the protection frequency band, and their broadband absorption mechanism, and to develop a multi-mechanism absorbing structure construction technology.
Outcomes:
CONFERENCE ORAL REPORT 1: 'Research on the construction and functional mechanism of lightweight absorbent materials based on secondary aluminum ash foamed cement' in the Third China Metamaterials Conference.
