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High performance sheet

Because silicon nitride ceramics have high temperature mechanical strength, wear resistance, acid and alkali corrosion resistance, good thermal hardness, self-lubricating and other excellent properties

Key words:

High performance sheet

resistance

temperature

corrosion

nitride

Classification:

High performance sheet

Product Consulting:

Product Description

Silicon nitride ceramic products performance characteristics and applications:

 

Because silicon nitride ceramics have high mechanical strength at high temperature, wear resistance, acid and alkali corrosion resistance, good thermal hardness, self-lubrication and other excellent properties, it is of great significance to use silicon nitride ceramic parts in special engineering occasions such as aerospace, petroleum and chemical industry, such as high temperature, corrosion resistance and mechanical wear resistance. It can be widely used in motor, electrical appliances, machinery, machining industry in the wear resistance, high strength, high temperature resistance, corrosion resistance and other components or replace the original traditional metal parts. Can be customized according to customer appearance specifications.

Insulation electrical strength: room temperature 2500V, 50Hz, one minute no breakdown phenomenon.

 

 

Acid corrosion resistance:

 

Boiling in 5% sulfuric acid solution for 6h, corrosion rate <10 g/m2.h

 

 

Alkali corrosion resistance:

 

Boiling in 30% sodium hydroxide solution for 6h, corrosion rate <0.6 g/m2.h。

 

 

Technical indicators:

 

room temperature flexural strength

≥ 900Mpa

room temperature fracture toughness

6.0-8.0 Mpam1/2

Bulk density

3.20-3.4g/cm3

Room temperature volume resistivity

1014Ω.cm

relative permittivity at room temperature

6-7

Thermal conductivity

23-25W/(m-k)

coefficient of thermal surge

3.1 × 10-6/℃

Hardness

HRA92-94

 

 

 

The main performance indicators of silicon nitride ceramics:

 

Performance

reaction sintered silicon nitride
EC-111L
 

pressureless sintering of silicon nitride
EC-125
 

The company hot pressing sintering
Silicon Nitride
 

Bulk density (g/cm3)

2.21

3.15

3.2~3.3

Bending strength (Mpa)

137.3

490.3

≥ 900

Fracture toughness (Mpa · m1/2)

2.17

4.71

6.0~8.0

Hardness (HRA)

\

87.0

92.0~94.0

Thermal conductivity (W/m · k)

5.44

12.56

23~25

Coefficient of thermal expansion χ10-6 
(RT~1200℃)
 

3.2

3.2

2.95~3

 

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