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Industrial Fine Silicon Nitride Ceramic Balls 3.2g/Cm3 1300C

Categories Machining Ceramic Parts
Brand Name: China
Model Number: 008
Place of Origin: Suzhou,China
MOQ: 100pcs
Price: Negotiable
Payment Terms: T/T
Supply Ability: 10000 Piece/Pieces per Month
Delivery Time: 25 days
Packaging Details: Box, Carton, Wooden, Bag etc. Customized package
Product name: High Precision Fine Silicon Nitride Ceramic Bearing Ball
Material: Silicon Nitride
Application: Industrial Ceramic
Fracture toughness: 5.0~7.0
Water Absorption: 0%
Electrical Insulation: excellent
Density: 3.2g/cm3
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Industrial Fine Silicon Nitride Ceramic Balls 3.2g/Cm3 1300C

High Precision Fine Silicon Nitride Ceramic Bearing Ball


Description:


Silicon nitride is a man-made compound synthesized through several different chemical reaction methods. Parts are pressed and sintered by well-developed methods to produce a ceramic with a unique set of outstanding properties. The material is dark gray to black in color and can be polished to a very smooth reflective surface, giving parts with a striking appearance. High-performance silicon nitride materials were developed for automotive engine wear parts, such as valves and cam followers, and proven effective.


Technical Parameters:


Mechanical behaviorUnitAl2O3SiCSi3N4ZrO2
Colour-------Light yellowblackblackwhite,black
Densityg/cm33.953.153.26
Bending strengthMPa300~400400~500800~1200950~1200
Elastic modulus EGPa380350300-320210
Poisson's ratio0.220.140.26--------
HardnessHv18002000~25001400~1700
1100~1300
HRC8085~9075~8070~75
Fracture toughnessMPa·m1/23.0~4.03.0~4.05.0~7.08.0~10.0
Maximum use temperature10001300400400
Thermal expansion coefficient10-6/℃8.443.310.3



Advantages:

1. Low density: 3.2 g/cm3 with lightweight than most of other technical ceramics
2. Superior hardness, it's one of most hardest technical ceramic than others
3. Great wear resistance due to its exceptional hardness and self-lubricity
4. Low coefficient of thermal expansion and high thermal conductivity (20 W/m.k)
5. Great thermal shock resistance, it's up to 1000ºC under the special atmosphere
6. High mechanical strength and well resistance to impact than other advance ceramics
7. Heat & high-temperature resistance, The max. service temperature can be up to 1300ºC
8. Chemical and corrosion resistance, resistant to almost all inorganic acids and many organic acids
9. At the same time, Silicon nitride is a high-performance electrical insulation materia.


Application:


Most ceramic balls are mounted in the bearing (high-speed bearing, high precision bearing, vacuum bearing, high/low-temperature bearing, nonmagnetic bearing, high precision ball screws) for the high technology industry, such as aerospace and national defense and etc. The ceramic balls can also be used for chemistry, metallurgy, medical treatment, food industry, oilfield, electronic engineering and etc.


More pictures:



China Industrial Fine Silicon Nitride Ceramic Balls 3.2g/Cm3 1300C factory
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