Metallurgical Product Description

Silicon metal is a silver gray or dark gray powder with metallic luster, which has of high melting point, good heat resistance, high resistivity, and superior oxidation resistance, which is an essential basic raw material in the hi-tech industry. The classification of silicon metal is usually classified according to the content of iron, aluminum, and calcium contained in the silicon metal components. According to the content of iron, aluminum, and calcium in silicon metal, silicon metal can be divided into 553 441 411 421 3303 3305 2202 2502 1501 1101 and other different brands.

Product Parameters

Specification granularity: natural block, 10-100mm, 10-60mm, 3-10mm, 1-3mm, 0-1mm, or customized according to customer requirements.

Packaging: Ton bag packaging (1000kg/bag) or customized according to customer requirements.

Product Advantages

The main component of metallic silicon is silicon, so it has similar properties to silicon. The properties of metallic silicon are similar to those of germanium, lead, and tin, and have semiconductor properties.

Manufacture And Use

In industry, silicon metal is usually made by carbon reduction of silicon dioxide in the electric furnace chemical reaction equation: SiO2 + 2C Si + 2CO so that the purity of silicon metal is 97~98%, called silicon metal and then melts after recrystallization, with acid to remove impurities, the purity of silicon metal is 99.7~99.8%.

Applications

It is widely used in refractory materials and powder metallurgy industries to improve its heat resistance, wear resistance, and oxidation resistance.

In the field of silicone chemical industry, industrial silicon powder is the basic raw material of silicone polymers.

Industrial silicon powder is sublimated into single-crystal silicon, which is an important raw material for integrated circuits and electronic components and is widely used in high-tech fields.

In the metallurgy and foundry industries, industrial silicon powder is used as an iron-based alloy additive and an alloying agent for silicon steel to improve the hardenability of steel.

These are used in high-temperature material production to make enamels and pottery. These also serve the needs of the semiconductor industry by producing ultra-pure silicon wafers.