Silicon Nitride Powder (Si3N4)

Silicon Nitride Powder Price & List

Product Name	Purity	Shape	Grade	Partcile Size
N-Si3N4	99% - 99.999%	Spherical, flake, irregular, etc.	Nanopowder	5 - 100 nm
U-Si3N4	99% - 99.999%	Spherical, flake, irregular, etc.	Ultra Fine	0.1 - 0.5 um
E-Si3N4	99% - 99.999%	Spherical, flake, irregular, etc.	Extremely Fine	0.5 - 10 um
F-Si3N4	99% - 99.999%	Spherical, flake, irregular, etc.	Fine	10 - 44 um
M-Si3N4	99% - 99.999%	Spherical, flake, irregular, etc.	Medium	44 - 150 um
C-Si3N4	99% - 99.999%	Spherical, flake, irregular, etc.	Coarse	150 - 250 um

Photovoltaic Grade Silicon Nitride Powder

Our synthesized photovoltaic silicon nitride powder has the characteristics of high purity, narrow particle size distribution and high success rate of ingot demoulding. It can be sprayed on the inner surface of polysilicon ingot crucible and is a necessary product for polysilicon ingot production.

Spec.	α-phase	N	Free Si	O2	D50
Si3N4-1	≥90 %	≥38.5%	≤0.2%	≤1.6%	≤1.5 um
Si3N4-2	≥90 %	≥38.5%	≤0.1%	≤1.6%	≤1.5 um

Ceramic Grade Silicon Nitride Powder

Our ceramic grade silicon nitride powder has the characteristics of high purity, narrow particle size distribution and high sintering activity. It is an important raw material for sintering silicon nitride ceramics, synthesizing Cylon powder and sintering Cylon ceramics.

Spec.	α-phase	N	Free Si	O2	D50
Si3N4-1	≥90 %	≥38.5%	≤0.1%	≤1.5%	≤2.5 um
Si3N4-2	≥90 %	≥38.5%	≤0.15%	≤1.5%	≤2.5 um
Si3N4-3	≥90 %	≥38.5%	≤0.1%	≤1.8%	≤0.6 um
Si3N4-4	≥90 %	≥38.5%	≤0.1%	≤1.8%	≤1.0-1.2 um

Silicon Nitride Powder for LED Phosphor

Our ultra pure silicon nitride powder provided has the characteristics of low impurity ion content, high luminous efficiency, grading treatment and large bulk density. It can be used to prepare SiALON, CASN and other phosphors.

Spec.	α-phase	N	Free Si	O	D50
Si3N4	≥70 %	>38%	≤0.5%	≤1.0%	1.8-3.0 um

Nano Silicon Nitride Powder

We can provide silicon nitride powder nanoparticles with particle size below 100 nm. It can be used in scientific research and high-tech fields.

Spec.	Purity	Shape	Color	D50
Si3N4-N30020	≥99.9 %	Spherical	Grayish white	20 nm
Si3N4-N30040	≥99.9 %	Spherical	Grayish white	40 nm
Si3N4-N30500	≥99.9 %	Irregular	Grayish white	500 nm
Si3N4-N30800	≥99.9 %	Irregular	Grayish white	800 nm

5N High Purity Silicon Nitride Powder

We can provide 5N high purity silicon nitride powder. It can be used in sputtering target, medicine, semiconductor thin films and electronic materials.

D50	1.5±0.2 um	Si	Base	N	>39.6%
O	< 0.5%	C	< 0.15%	Si-free	< 0.03%
Fe	< 1 ppm	Al	< 1 ppm	Ca	< 1 ppm
Mg	< 0.3 ppm	Mn	< 0.3 ppm	Cu	< 0.3 ppm
P	< 0.3 ppm	S	< 0.3 ppm	B	< 0.3 ppm

Note: We provide customized service. If you don't find the powder you want, please send us an email directly. We can customize it according to your requirements.

Silicon Nitride Powder

Silicon nitride powder is a kind of nitride ceramic powder with grayish white appearance. The chemical formula is Si3N4. According to the particle size, it can be divided into coarse silicon nitride powder, fine silicon nitride powder, extremely fine silicon nitride powder, ultra-fine silicon nitride powder and silicon nitride nanopowder. Different particle sizes show different colors.

Silicon Nitride Powder Application

Silicon nitride powder is widely used in different occasions. It can be used for coating alloy on die, cutter, turbine blade, turbine rotor and inner wall of cylinder. It can also be used in metal, ceramic and graphite matrix composites, rubber, plastics, coatings, adhesives and other polymer matrix composites. Silicon nitride powder can also be used for surface protection of mobile phones, automobiles, etc.

We can supply different silicon nitride powder for different occasions. The details are as follows:

Photovoltaic Grade Silicon Nitride Powder

Photovoltaic grade silicon nitride powder is used as release agent for polycrystalline silicon ingot. We adopt a special silicon powder nitriding process. The synthesized photovoltaic silicon nitride powder has the characteristics of high purity, narrow particle size distribution and high success rate of ingot demoulding. The photovoltaic grade silicon nitride powder can be sprayed on the inner surface of polysilicon ingot crucible and is a necessary product for polysilicon ingot production.

Ceramic Grade Silicon Nitride Powder

Ceramic grade silicon nitride powder is an important raw material for sintering silicon nitride ceramics, synthesizing Cylon powder and sintering Cylon ceramics. The ceramic grade silicon nitride powder synthesized by us has the characteristics of high purity, narrow particle size distribution and high sintering activity. It can be used in automobile industry, aerospace, semiconductor industry, paper industry, machinery industry, metallurgy industry, petrochemical industry and new energy industry.

Silicon Nitride Powder for LED Phosphor

The ultra pure silicon nitride powder provided by us has the characteristics of low impurity ion content, high luminous efficiency, grading treatment and large bulk density. Ultrapure silicon nitride powder can be used to prepare SiALON, CASN and other phosphors.

Nano Silicon Nitride Powder

Nano silicon nitride powder is a kind of silicon nitride powder nanoparticles with particle size below 100 nm. Nano silicon nitride powder is mainly used in scientific research and high-tech fields. 

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