Effects of Heat Treatment on the Electromagnetic Wave Absorption Characteristics of Resorcinol Formaldehyde Silicon Dioxide Ceramic Particles.

Due to the inherent dispersion property of the material, both ε′ and ε′′ showed a decreasing trend with increasing frequency when subjected to a heat treatment temperature of 800 °C.

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This close approximation to perfect impedance matching was highly significant because it indicated that most of the incoming electromagnetic waves encountered minimal reflection at the interface of RS-1500 and were efficiently coupled into the material’s interior.

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