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Silicon Nitride

Posted at: Offers to Sell and Export | Posted on: Tue 01 Jul, 2008 12:22 am | Targeted Countries: Thailand | USA | Russia
 
silicon nitride
Products Photos CatalogSilicon Nitride Photos Catalog



Product Name: Silicon nitride whisker

Purity: 99.0 %


Color: sandy beige

APS: 100nmx800nm

[O] <0.62%

SSA:

45 m2/g

Bulk density: 0.44 g/cm3

Crystal cell: Hexagonal

Shelf time: 24 months

Si3N4 whisker materials offer lower sintering temperature, high mechanical strength, good chemical stability or anti-corrosion. As dispersion phase in nanoceramic composites, it increases the strength especially at high temperature with a lower friction surface toward improved overall performances of the composites. Silicon nitride can be used as intensifier of composites of metal matrixes, ceramic matrixes and graphite matrixes; composite paint, binders, rubbers and plastics, and other polymer matrix composite. For example, silicon nitride can reinforced Al-matrix composite, alumina ceramic composite, silicon carbide ceramic, silicon nitride ceramic.

Product Descriptions:

Chemical formula: Si3N4 amorphous

Purity: >99.0%

[O] <0.62%

free [Si] <0.2%

APS: 20 nm

SSA: 115 m2/g

True density: 3.4 g/cm3

Bulk density: 0.05 g/cm3

Crystal cell: amorphous

Color: White

Shelf time: 24 months

Properties and features:

It possesses high purity, small and uniform particle diameters, large specific surface area, high surface activity, low loose loading density, the violet reflectance larger than 90% and is the best additives of super thin textile absorbing infrared ray, the infrared absorptivity larger than 70%, lower sintering temperature, high mechanical strength, good chemical stability or anti-corrosion and self lubricating. Low formation ceramic temperature of devices, wear aging, especially, large high temperature strength. Because nanometer Si3N4 forms the dispersive phase in composite, general properties of composites are greatly improved. Silicon nitride nano powder composites with chemical materials such as nylon and PET have specialized properties, such as improve electric conductivity, absorb wave.

Some applications:

1) Nanostructured Si3N4 devices:

For example, in metallurgical, petroleum & chemical industry, mechanical industry, aeronautics and space industry and energy source fields etc., the following devices can be manufactured from it: balls and rollers of roll bearings, slide bearings, covers, valves, turbine, cutting tool, insulation part, spray nozzles (for rockets), spray pipe (for missiles), strengthening materials for Al alloys and other structural devices with high wear resistance, anti-high temperature and anti-corrosion. Now we have developed coatings of SiC/ Si3N4 compostites. it can anti high temperature, wear, strong acides and alkalies except 98% H2SO4.

2) Nanoparticle coating on metal and other materials

For example, it may be formed a nano coating on moulds, cutting tools, blades of steam-turbines, rotors of turbines and internal wall of cylinders etc.. Clear anti-scratch coating for cell phone or cars.

3) Composites: Si3N4 nano composites of metal matrixes, ceramic or graphite matrixes; composite paint, binders, rubbers and plastics, and other polymer matrix composites with Nano- Si3N4 particles.



Company Contact:

No member photo
Contact Name: Erinhsing
Company Name: Hefei Kaier Nanotech & Development Co., Ltd
Email: Email
Tel: 86-551-5314886
Fax: 86-551-5315779
Street Address: 17 Tianhu Road,
Hi-tech Park, Hefei, Anhui Province,
China
Website: http://www.hfkiln.com/
Member name: Erinhsing
Country: China-CN China
Member Since: 30 June 2008
Total Leads: 12 Erinhsing Import Export Business Leads
Business focus: Advanced Ceramics, Silicon, Silicon Nitride, Silicon Carbide, Boron Carbide, Zirconium Carbide, Titanium Carbide, Titanium Nitride, Aluminium Nitride
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