Boron nitride is a double compound composed of the same number of nitrogen atoms and boron atoms, so its experimental formula is BN. Boron nitride and carbon are isoelectronic, and like carbon, boron nitride has a variety of isomorphs. The cubic boron nit

The bismuth oxide is a pale yellow powder at normal temperature, and is orange when heated, and continues to heat to a reddish brown color, which still turns pale yellow after cooling.

MoSi2 is a high-temperature material with excellent properties due to its excellent properties of metal and ceramics. It has high melting point, high hardness and excellent electrical conductivity, thermal conductivity and chemical resistance. It has attr

Molybdenum disulfide is the main component of molybdenum ore. It is a lead gray to black solid powder. It has a slippery feel and is odorless. It belongs to hexagonal or orthorhombic, similar to graphite and has metallic luster.

Molybdenum disulfide is a compound composed of two elements, molybdenum and sulfur, and has the chemical formula MoS₂. This compound belongs to the transition metal dichalcogenide, which has a silver-black luster and exists in the form of molybdenite in n

The essence of the preparation of spherical alumina by spraying method is to realize the phase transformation in a short time, and the product is spheroidized by the action of surface tension.

Aluminium oxide is a white solid, a compound of aluminum and oxygen, and has a molecular formula of Al₂O₃. It is also known as bauxite in mining, ceramics and materials science.

Quartz powder (same as quartz sand) is also known as silicon micropowder. Quartz sand is a hard, wear-resistant, chemically stable silicate mineral. Its main mineral component is SiO₂. The color of quartz sand is milky white or colorless and translucent.

Silicon nitride is a compound composed of silicon and nitrogen. The powder of elemental silicon is heated to between 1300 and 1400 °C under a nitrogen atmosphere, and the weight of the silicon powder sample increases with the reaction of the silicon eleme

High temperature superconducting materials and related science and technology have been rapidly developed, and have been applied in power, transportation and medical fields.