What are the Main Characteristics of Metal Silicon Powder?

(What are the Main Characteristics of Metal Silicon Powder?)

What is metal silicon powder?

Metal silicon powder is a powder state of metal silicon. Silicon has two
allotropes, amorphous silicon and crystalline silicon. Amorphous silicon is a
gray-black powder that is actually a microcrystal. Crystalline silicon has the
crystal structure and semiconductor properties of diamond, with a melting point
of 1410°C, a boiling point of 2355°C, a density of 2.32~2.34 g/cm3, a Mohs
hardness of 7, and a brittleness.

The main characteristics of metal silicon powder

Chemical silicon refers to metallic silicon used in the production of
organosilicon and polysilicon. From a global perspective, the consumption of
metallurgical silicon is more than that of chemical silicon. However, with the
continuous development of science and technology, chemical silicon has been
widely used in the production of organic silicon and semiconductors, and is
widely used in the production of organic silicon. Silicon monomer and polymer
silicone oil, silicone rubber, silicone resin building anticorrosion, water
repellent, etc. They have unique properties such as high temperature resistance,
electrical insulation, radiation resistance, and waterproofing. Used in
electrical, aviation, machinery, chemical, pharmaceutical, national defense,
construction and other departments. As the core of integrated circuits, more
than 95% of electronic components are made of semiconductor silicon, which is
the backbone of the contemporary information industry.

Amorphous silicon is chemically active and can burn violently in oxygen. It
reacts with non-metals such as halogen, nitrogen and carbon at high temperature,
and can also interact with metals such as magnesium, calcium and iron to form
silicides. Amorphous silicon is almost insoluble in all inorganic and organic
acids including hydrofluoric acid, but is soluble in mixed acids of nitric acid
and hydrofluoric acid. Concentrated sodium hydroxide solution can dissolve
amorphous silicon and release hydrogen. Crystalline silicon is relatively
inactive, it does not combine with oxygen even at high temperature, it is not
soluble in any inorganic acid and organic acid, but it is soluble in mixed acids
of nitric acid and hydrofluoric acid and concentrated sodium hydroxide
solution.

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(What are the Main Characteristics of Metal Silicon Powder?)