Copper oxide (chemical formula: CuO) is an oxide of copper, which is a black solid. It's a strong electrolyte.

Colloidal silver is a kind of metallic silver with a particle size of nano-level, and its particle size is mostly around 25 nanometers.

Silicon nitride (Si3N4) is a compound composed of silicon and nitrogen elements. It is an important structural ceramic material.It is a super hard substance, lubricity in itself, and wear - resistant, for atomic crystals.

Nitinol powder is a type of material called shape memory alloy. The specific surface area (m2/g) of the nickel-titanium alloy powder is 12.3, its bulk density (g/cm3) is 0.15, and the powder color is black.

Manganese dioxide is a black or brown solid. It is the most stable oxide of manganese and often occurs in pyrolusite and manganese nodules.

Graphite is a allotrope of carbon, and the two are closely related. Graphite is the most stable form of carbon.

Zirconium nitride (ZrN) is an refractory compound, golden yellow, high decomposition temperature, good chemical stability, has a very good high temperature resistance, corrosion resistance, wear resistance, used in atomic energy industry reactor protectiv

Zinc sulfide is an inorganic compound with the chemical formula ZnS. It mainly occurs in the minerals sphalerite and wurtzite. Both sphalerite and wurtzite are intrinsic, wide-band gap semiconductors.

Nickel oxide is a greenish-black cubic crystal, soluble in acid and ammonia, insoluble in water, yellow when heated, relative density 6.67, melting point 1984℃.When heated to 400℃, it becomes nickel trioxide by absorbing oxygen from the air.

3D printing Metals are metals that are reduced to fine particles and are the basic base material for most 3D printing processes for producing metal parts.