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1. Description:
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Reaction bonded silicon nitride is made by direct nitridation of a compacted silicon powder, and because of the difficulty of ensuring complete reaction; it is hard to achieve a high component density.
 Usual densities are in the range 2.3 - 2.5g/cm3 compared with 3.29g/cm3 for gas pressured sintered silicon nitride.Â
The higher density gives the HPSN, SSN & GPS-SSN materials better physical properties and means they are used in more demanding applications at very high temperature, especially for non-ferrous molten metal handling and thermocouple sheaths. The nitridation produces only a small volume change, which means that RBSN components do not need to be machined after fabrication and complex near net shapes can be produced in a single process stage.
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2. Features:
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a. high temperature strength
b. superior thermal shock resistance
c. excellent wear resistance
d. good fracture toughness
e. mechanical fatigue and creep resistance
f. Excellent non-wetting property with good oxidation resistance
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3. Technical data:
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Property
SSNÂ Â Â Â Â Â Â GPS-SSNÂ Â Â Â Â Â Â Â HPSNÂ Â Â Â Â Â Â RBSN
Density (g.cm-3)
3.28Â Â Â Â Â Â Â Â Â Â Â 3.30Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3.23Â Â Â Â Â Â Â Â Â Â 2.5
Young's Modulus (GPa)
285Â Â Â Â Â Â Â Â Â Â Â Â Â 320Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 315Â Â Â Â Â Â Â Â Â Â 189
Bend Strength (MPa)
675Â Â Â Â Â Â Â Â Â Â Â Â Â 750Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 850Â Â Â Â Â Â Â Â Â Â 440
Fracture Toughness K1c (MPa.m0.5)
6Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 8Â Â Â Â Â Â Â Â Â Â Â Â 2.5
Hardness (GPa)
16Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 16Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 16Â Â Â Â Â Â Â Â Â Â 7.2
Thermal Expansion Coefficient (x 10-6/°C)
3.2Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3.2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3.2Â Â Â Â Â Â Â Â Â Â 3.2
Thermal Conductivity (W/m.K)
25Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 30Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 30Â Â Â Â Â Â Â Â Â Â Â 14
Maximum Temperature (°C) for application
Dielectric Constant
Abrasive Wear resistance Parameter1150Â Â Â Â Â Â Â Â Â Â Â 1150Â Â Â Â Â Â Â Â Â Â Â Â Â 1150Â Â Â Â Â Â Â Â 1100
9Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â Â Â 7.5
1110Â Â Â Â Â Â Â Â Â Â Â 1130Â Â Â Â Â Â Â Â Â Â Â Â Â 1120Â Â Â Â Â Â Â Â Â 360
As a professional company in advanced ceramic industries, HIGHBORN is supplying high quality and high precision ceramic components for clients from worldwide. Our ceramic products are widely used in various fields of automotive, metallurgy, machinery, electronic & electrical, food, chemical, medical and so on. With experienced engineers and talented workers, we are able to evaluate projects and drawings properly, make valuable suggestion, supply satisfying products. Our materials including:
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- Aluminium Oxide ( 95% 96% 99% 99.5% 99.7% Al2O3 )
- Zirconium Oxide ( Yttria stabilized ZrO2 )
- Silicon Nitride ( Gas pressure sintered & Hot pressed Si3N4 )
- Silicon Carbide (Reactive sintered, Â Pressureless sintered & Recrystallization SiC)
- Aluminum Nitride
- Machinable Glass Ceramic
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Aiming at building long term cooperation relationship with our clients, we set our motto as "Quality First". Far now, our products have been exported to North Amirica, East Europe, West Europe, East Asia, Southeast Asia and get good reputation from our client.
Payment Term
T/T
L/C
D/A
D/P
AliExpress
Western Union
MoneyGram
According to certain countries, our way of payment will be adjusted.
1. Description:
Â
Reaction bonded silicon nitride is made by direct nitridation of a compacted silicon powder, and because of the difficulty of ensuring complete reaction; it is hard to achieve a high component density.
 Usual densities are in the range 2.3 - 2.5g/cm3 compared with 3.29g/cm3 for gas pressured sintered silicon nitride.Â
The higher density gives the HPSN, SSN & GPS-SSN materials better physical properties and means they are used in more demanding applications at very high temperature, especially for non-ferrous molten metal handling and thermocouple sheaths. The nitridation produces only a small volume change, which means that RBSN components do not need to be machined after fabrication and complex near net shapes can be produced in a single process stage.
Â
Â
2. Features:
Â
a. high temperature strength
b. superior thermal shock resistance
c. excellent wear resistance
d. good fracture toughness
e. mechanical fatigue and creep resistance
f. Excellent non-wetting property with good oxidation resistance
Â
Â
3. Technical data:
Â
Property
SSNÂ Â Â Â Â Â Â GPS-SSNÂ Â Â Â Â Â Â Â HPSNÂ Â Â Â Â Â Â RBSN
Density (g.cm-3)
3.28Â Â Â Â Â Â Â Â Â Â Â 3.30Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3.23Â Â Â Â Â Â Â Â Â Â 2.5
Young's Modulus (GPa)
285Â Â Â Â Â Â Â Â Â Â Â Â Â 320Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 315Â Â Â Â Â Â Â Â Â Â 189
Bend Strength (MPa)
675Â Â Â Â Â Â Â Â Â Â Â Â Â 750Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 850Â Â Â Â Â Â Â Â Â Â 440
Fracture Toughness K1c (MPa.m0.5)
6Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 8Â Â Â Â Â Â Â Â Â Â Â Â 2.5
Hardness (GPa)
16Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 16Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 16Â Â Â Â Â Â Â Â Â Â 7.2
Thermal Expansion Coefficient (x 10-6/°C)
3.2Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3.2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3.2Â Â Â Â Â Â Â Â Â Â 3.2
Thermal Conductivity (W/m.K)
25Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 30Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 30Â Â Â Â Â Â Â Â Â Â Â 14
Maximum Temperature (°C) for application
Dielectric Constant
Abrasive Wear resistance Parameter1150Â Â Â Â Â Â Â Â Â Â Â 1150Â Â Â Â Â Â Â Â Â Â Â Â Â 1150Â Â Â Â Â Â Â Â 1100
9Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â Â Â 7.5
1110Â Â Â Â Â Â Â Â Â Â Â 1130Â Â Â Â Â Â Â Â Â Â Â Â Â 1120Â Â Â Â Â Â Â Â Â 360
As a professional company in advanced ceramic industries, HIGHBORN is supplying high quality and high precision ceramic components for clients from worldwide. Our ceramic products are widely used in various fields of automotive, metallurgy, machinery, electronic & electrical, food, chemical, medical and so on. With experienced engineers and talented workers, we are able to evaluate projects and drawings properly, make valuable suggestion, supply satisfying products. Our materials including:
Â
- Aluminium Oxide ( 95% 96% 99% 99.5% 99.7% Al2O3 )
- Zirconium Oxide ( Yttria stabilized ZrO2 )
- Silicon Nitride ( Gas pressure sintered & Hot pressed Si3N4 )
- Silicon Carbide (Reactive sintered, Â Pressureless sintered & Recrystallization SiC)
- Aluminum Nitride
- Machinable Glass Ceramic
Â
Aiming at building long term cooperation relationship with our clients, we set our motto as "Quality First". Far now, our products have been exported to North Amirica, East Europe, West Europe, East Asia, Southeast Asia and get good reputation from our client.
Payment Term
T/T
L/C
D/A
D/P
AliExpress
Western Union
MoneyGram
According to certain countries, our way of payment will be adjusted.
High Quality Black Silicon Nitride Ceramic Ball
Model NO.: HBM
Sintering Way: GPS/HP/Ssn
Surface Finish: Polishing
CNC: Yes
Size: Customized
Usage: Bearing Ball
Keyword1: Silicon Nitride
Keyword2: Silicon Nitride Ball
Keyword3: Silicon Nitride Ceramic Ball
Keyword4: Black Silicon Nitride Ball
Trademark: HIGHBORN
Transport Package: Safe Package, Export Carton with Foam
Specification: RoHS
Origin: Lianyungang, Jiangsu
HS Code: 6903900000
Model NO.: HBM
Sintering Way: GPS/HP/Ssn
Surface Finish: Polishing
CNC: Yes
Size: Customized
Usage: Bearing Ball
Keyword1: Silicon Nitride
Keyword2: Silicon Nitride Ball
Keyword3: Silicon Nitride Ceramic Ball
Keyword4: Black Silicon Nitride Ball
Trademark: HIGHBORN
Transport Package: Safe Package, Export Carton with Foam
Specification: RoHS
Origin: Lianyungang, Jiangsu
HS Code: 6903900000