The natural phanerocrystalline graphite, resembling fish phosphorus in shape, is a hexagonal system with layered structure.

Last year, Lightelligence, a photonic AI chip company backed by the M.I.T. team, announced an important development -- the successful development of the world's first Prototype photonic chip.

At present, the third generation compound semiconductors represented by silicon carbide (SiC) and gallium nitride (GaN) are receiving more and more attention.

Boron is always found in nature in the form of oxygen-containing compounds, mainly boric acid and various borates.

Tantalum Carbide is black or dark brown metallic powder, cubic crystal system, hard. Melting point 3880℃, boiling point 5500℃, relative density 13.9, hardness 9 ~ 10.

The origin of gold nanoparticles can be traced back to the 16th century. After Paracelsus created "drinking gold" to treat mental illnesses, nanogold entered the scientific scene.

Due to burning at different temperatures, bismuth oxide can produce three variants: α-body: yellow heavy powdery or monoclinic crystal, melting point 820℃, relative density 8.9, refractive index 1.91. It changes toγat 860℃-body. β-body: gray-black cubic c

Titanium nitride, chemical formula TiN, is a synthetic ceramic material that is extremely hard and nearly as hard as diamond. Commonly used as a coating on titanium alloys, steel, hard alloys and aluminum structures to improve surface properties.

Ding an appropriate amount of nano-SiO2 to ceramic products can not only greatly reduce the brittleness of ceramic products, but also increase the toughness of ceramic products by several or even dozens of times, improve the finish degree significantly.

Bismuth sulfide is a chemical substance with the chemical formula Bi2S3. The molecular weight is 514.15. The general state is brownish yellow powder or crystal.