Table 4.

Reflection losses of nickel powder-based material.

Material	Reflection Losses (RL)	Frequency/Frequency Range
Metal surface coated with a nickel-zinc ferrite film (Ni0.65Zn0.35Fe2O4) [41]	RL < 20%	1 MHz–1.5 GHz
Hybrid nickel powders with Ti3SiC2 [42]	RL < 10 dB	8.2–12.4 GHz
Monodisperse nickel micro- and nanopowders [43]	RL < 12 dB	0.5–18 GHz
Ultrafine Ni-Co-P-SiO2 composite powder [44]	RL < 48.6 dB	4.2 GHz
Graphene coated with nickel [45]	RL = −10 dB	5 GHz
	RL = −16 dB	9.15 GHz
Reduced graphene oxide/NiO composite [46]	RL = −10 dB	10.2–16.9 GHz
Silicon carbide coated with Ni-Co-P [47]	RL = −32 dB	6.3 GHz