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High Thermal Shock Resistance Silicon Nitride Si3N4 Ceramic 1High Thermal Shock Resistance Silicon Nitride Si3N4 Ceramic 2High Thermal Shock Resistance Silicon Nitride Si3N4 Ceramic 3High Thermal Shock Resistance Silicon Nitride Si3N4 Ceramic 4
  • High Thermal Shock Resistance Silicon Nitride Si3N4 Ceramic 1
  • High Thermal Shock Resistance Silicon Nitride Si3N4 Ceramic 2
  • High Thermal Shock Resistance Silicon Nitride Si3N4 Ceramic 3
  • High Thermal Shock Resistance Silicon Nitride Si3N4 Ceramic 4

High Thermal Shock Resistance Silicon Nitride Si3N4 Ceramic

Model:UPT-020
Brand:UNIPRETEC
Origin:Made In China
Category:Metallurgy , Mining & Energy / Metallurgy & Mining / Non-metallic Mineral Products
Label:silicon nitride , si3n4 ceramic , technical ceramic
Price: US $10 / pc
Min. Order:100 pc
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Member Information

Detail

XIAMEN UNIPRETEC ADVANCED CERAMICS CO.,LTD

Free MemberFu Jian - China
Live Chat:Last Online:04 May, 2016

Product Description

Silicon nitrides (Si3N4) feature an excellent combination of material properties. They are nearly as light as silicon carbide (SiC), but their microstructure gives them excellent thermal shock resistance and their high fracture toughness makes them resistant to impacts and shocks.

Key Properties of Silicon Nitride 
*High strength over a wide temperature range
*High fracture toughness
*High hardness
*Outstanding wear resistance, both impingement and frictional modes
*Good thermal shock resistance
*Good chemical resistance

Different Types of Silicon Nitride Ceramics
(1)Gas Pressured Sintered Silicon Nitride(GPSN)
GPSN is a family of fully dense materials having a range of compositions that are produced in cost effective, complex net shapes. This grade of silicon nitride has the best combination of properties making it the leading technical ceramic for a number of structural applications.

(2)Hot Pressed Silicon Nitride Ceramics(HPSN)
HPSN is formulated into a variety of compositions having minimal densification aids. These HPSN compositions offer the highest hardness of UNIPRETEC's silicon nitrides. Finished components are machined at precision diamond grinding facility.

Typical Silicon Nitride applications
1.Bearing balls and rollers
2.Cutting tools
3.Va es, turbocharger rotors for engines
4.Turbine blades
5.Glow plugs
6.Molten metal handling
7.Thermocouple sheaths
8.Welding jigs and fixtures
9.Welding nozzles

 

Characteristics Unit 95 Al2O3 99 Al2O3 ZrO2 GPSi3N4 BN Glass Ceramic
Crystal Structure - hexagonal hexagonal tetragonal hexagonal hexagonal -
Color - white ivory white gray white white
Density g/cm3 3.65 3.88 5.95 3.22 2.26 2.55
Water Absorption % 0 0 0 0 0.0-1.0 0
Young's Modulus Gpa 280 350 205 295 670 65
Vickers Hardness Gpa 14 20 12 18-20 - -
Flexural Strength  Mpa 280 300 900 650 51 100
Compressive Strength  Mpa 2000 2500 2200 2200 230 500
Thermal Conductivity  W/(m·k) 18-25 30 2.2 25 20 1.7
Thermal shock resistance Δ(℃) 220 180-200 280-350 450-650 >1500 25-100
Max. Working Temperature  1500 1700 850 1200 960 800
Volume Resistivity  Ω·cm >10^15 >10^14 >10^12 >10^14 10^13 10^16
Dielectric Constant (1 MHz ) - 9.5 9.8 26 8.2 4.08 6.02
Dielectric Strength kV/mm 16 22 - 16 375 40

 

About UniPreTec
UniPreTec provides high-performance ceramic products in Alumina, Zirconia, Zirconia Toughened Alumina, Silicon Carbide, Silicon Nitride and  further special materials. Along with these materials, we offer several machining from which to choose such as cutting, drilling, sawing, turning, grinding, polishing etc.. Furthermore, our technologies and equipments allow us to provide various and flexible forming processes, like dry pressing, isostatic pressing, extrusion, injection moulding and slip casting.


Product Image

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Send Inquiry to this Member

XIAMEN UNIPRETEC ADVANCED CERAMICS CO.,LTD

RM606, NO.151 YUEHUA ROAD, HULI DISTRICT, XIAMEN

Phone:
86-592-5510319
Fax:
86-592-5510320
Contact:
Tony Huang (saler)
Mobile:
446139

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