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High Purity Silicon Nitride Ceramic Thermal Conductivity , Strengthful Ceramic Heating Rod

Categories Silicon Nitride Ceramic
Brand Name: FFTC
Certification: ISO9001:2008
Place of Origin: YIXING, CHINA
MOQ: 100pcs
Price: Negotiation
Payment Terms: MoneyGram, T/T
Supply Ability: 1000000/year
Delivery Time: 3 - 4 weeks
Packaging Details: carton and wooden crate
Application: Industrial Ceramic
Color: Gray
Type: Ceramic Tubes
Material: Alumina Ceramic
Sample: Available
Density: 3.2g/cm3
Shape: Pipe
Bending strength: 800
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High Purity Silicon Nitride Ceramic Thermal Conductivity , Strengthful Ceramic Heating Rod

High purity and strength good thermal conductivity silicon nitride ceramic rod


Features

1. Long service life

2. Sintering: GPSN/RSSN (gas pressure sintering, reaction sintering)

3. Good abrasive resistance
4. Excellent thermal shock resistance
5. Top refractory
6. Reduced maintenance requirements and ease of maintenance
7. Anti-corrosion in the high-temperature
8. Perfect electrical insulation resistance
9. Customization available


Advantages

Silicon nitride ceramic is a kind of superhard material, which has lubricity and wear resistance. It does not react with other inorganic acids except hydrofluoric acid (reaction equation: Si3N4+4HF+9H2O=====3H2SiO3 ( Precipitation) +4NH4F), strong anti-corrosion ability, anti-oxidation at high temperature. Moreover, it can withstand cold and hot shock, and is heated to above 1 000℃ in air, and is rapidly cooled and heated rapidly without breaking.


Product Description

Silicon nitride (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.

Its applications as balls and rolling elements for light and extremely precise bearings, heavy-duty ceramic forming tools and automotive components subject to high stress. And the good thermal shock resistance and high temperature resistance is exploited in welding processes.

Bulk densityKg/m33.2×103
Water absorption%0
Mechanical propertiesVickers hardness load 500g(GPa)13.9
Flexural strengthMPa610
Compressive strengthMPa3820
Young's modulus of elasticityGPa290
Poisson's ratio-0.28
Fracture toughnessMPa√m5
Thermal characteristicsLinear thermal expansion coefficient40-400℃×10-16/℃2.6
40-800℃3.2
Thermal conductivityW/(m·K)20
Specific heatJ/(kg·K)0.66×103
Thermal shock resistance(Put into the water)550
Electrical characteristicsDielectric strengthV/m10×106
Volume resistivity20℃Ω·cm>1014
300℃1012
500℃1010
Dielectric constant (1MHz)--
Dielectric loss angle (1MHz)(×10-4)-
Loss factor(×10-4)-
Chemical propertiesNitric acid (60%) 90℃

WT Loss

Mg/cm2/day

1.00
sulfuric acid (95%) 95℃0.40
Sodium hydroxide (30%) 80℃0.36

Packing and Delivery

We pack our goods in wooden case.

We send goods by Sea/Air/Express timely and saftely.


China High Purity Silicon Nitride Ceramic Thermal Conductivity , Strengthful Ceramic Heating Rod factory
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