Nano zirconium diboride appears as a gray powder, with a density of 5.8 and a melting point of 3040°C. Nano zirconium diboride has advantages such as a high melting point (approximately 3040°C), high hardness, and high thermal conductivity, making it an excellent high-temperature structural material. It exhibits metallic properties, with a resistivity slightly lower than that of metallic zirconium, and has good electrical conductivity.

Nano titanium diboride appears as a gray-black powder and has a hexagonal crystal structure similar to aluminum boride (AlB₂). Its melting point ranges from 2900 to 3225°C, and it can be oxidized in air at temperatures up to 1000°C. It is stable in hydrochloric acid (HCl) and hydrofluoric acid (HF).

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