What Is The Preparation Method Of Metal Si Powder?

Mar 28, 2025

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What is the preparation method of metal silicon powder?

Metal Si Powder price, there are many methods for preparing metal silicon powder, including gas deposition, liquid freezing, chemical vapor deposition, etc. Gas deposition is a simple and effective preparation method, which is the deposition of metal materials under high temperature and high pressure to form metal silicon powder. Liquid freezing is a thermal cooling method, which is to quickly cool the metal solution to precipitate the metal into metal silicon powder. Chemical vapor deposition is a chemical process, which is the formation of metal silicon powder based on silicon source after the metal material undergoes a gas phase reaction.

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Silicon powder	Size (mesh)	Chemical Composition %
		Si	Fe	Al	Ca
		≥	≤
Chemical silicon powder	Si-(20-100 mesh) Si-(30-120 mesh) Si-(40-160 mesh) Si-(100-200 mesh) Si-(45-325 mesh) Si-(50-500 mesh)	99.6	0.2	0.15	0.05
		99.2	0.4	0.2	0.1
		99.0	0.4	0.4	0.2
		98.5	0.5	0.5	0.3
		98.0	0.6	0.5	0.3
Silicon powder for refractory	-150 mesh -200 mesh -325 mesh -400 mesh -600mesh	99.6	0.2	0.15	0.05
		99.2	0.4	0.2	0.1
		99.0	0.4	0.4	0.2
		98.5	0.5	0.3	0.2
		98.0	0.6	0.5	0.3
Low-grade	-200 mesh -325 mesh	95-97	Impurity content≤3.0%