High quality nano silicon nitride Si3N4

Product name: high quality nano silicon nitride Si3N4

Product Nature

color: White

Product brand: JCSIN

Purity: >97%

Oxygen content: <0.62%

Average particle size: 25nm

Crystal form: amorphous

Specific surface area: 50m 2 /g

Bulk density: 0.05g/cm3

TEM test results

Performance characteristics:

This product has high purity, small particle size, uniform distribution, large specific surface area, high surface activity, low bulk density, ultraviolet reflectance above 90% and absorption rate of infrared band above 97%, and the ceramic forming temperature of the device is low , Good dimensional stability, high mechanical strength, good chemical corrosion resistance, especially high-temperature strength, and self-lubricating effect, which forms fine dispersed phases in the composite material, thereby greatly improving the comprehensive performance of the composite material. The product itself has self-lubricating properties and can be used in lubricants. Silicon nitride has high hardness and low sliding friction coefficient, which can be used in the application of ceramic wear-resistant composite plating on metal surfaces.

The main purpose:

• • Manufacturing precision structural ceramic devices: such as the balls and rollers of rolling bearings, sliding bearings, sleeves, valves, and structural devices with wear resistance, high temperature resistance, and corrosion resistance in industries such as metallurgy, chemical industry, machinery, aviation, and energy.
  • Surface treatment of metals and other materials: such as molds, cutting tools, steam turbine blades, turbine rotors, and cylinder inner wall coatings.
  • Preparation of high-performance composite materials: such as metals, ceramics and graphite-based composite materials, rubber, plastics, coatings, adhesives and other polymer-based composite materials.
  • Application in high wear-resistant rubber: Add 1-3 parts of Si3N4 powder to the corrugated tube whose main rubber material is EPDM, and the durability test of the product can be increased from 200,000 times to more than 1 million times, and the performance is increased by 5 times .
  • Application of wear-resistant composite coating on metal surface: Silicon nitride has high hardness, low sliding friction coefficient, and its mechanical properties are higher than other ceramic materials; compared with metal materials, the room temperature strength of silicon nitride can be maintained above 800 ℃, even Between 1200°C and 1400°C, it will still maintain considerable strength. For harsh occasions, it is advisable to use the surface-plated Si3N4 metal composite material.
  • Application of infrared absorbing textiles: Silicon-based nano-powder is nylon, polyester enhanced conductivity. Nano-silicon nitride has an absorption rate of more than 97% for the human body to absorb infrared wavelengths, and it is the most excellent infrared-absorbing ultrafine textile additive.
  • Application of polycrystalline silicon and single crystal release agent: Used for demoulding between the silicon melt and the quartz crucible during the melting and casting of polycrystalline silicon and single crystal silicon, to prevent the adhesion of molten silicon to the crucible, and at the same time play a barrier effect to ensure silicon products The purity.
  • Among LED luminescent materials: nano-Si3N4 phosphors are all luminescent materials with individual luminescent centers (cerium Ce3, europium Eu2). The energy transition process belongs to f-d transition.
  • Application of nano silicon nitride in other industrial fields: high-performance wear-resistant, high-temperature resistant rubber seals and tires, application in anti-corrosion and fire-resistant coatings, application in high-temperature insulating electronic materials and inorganic ceramic lubricants, and can also be applied to structures Ceramics and inorganic composite materials, etc.

Precautions:

This product should be stored in a cool, dry room to avoid heavy pressure. The powder without surface treatment should not be exposed to the air during use to avoid moisture absorption and agglomeration, which will affect the dispersion performance and use effect.