SiC Bonded Si3N4 Refractory Brick

Short Description:

WeiTai Energy Technology Co., Ltd. is a leading supplier specializing in wafer and advanced semiconductor consumables. We are dedicated to providing high-quality, reliable, and innovative products to semiconductor manufacturing, photovoltaic industry and other related fields.

Our product line includes SiC/TaC coated graphite products and ceramic products, encompassing various materials such as silicon carbide, silicon nitride, and aluminum oxide and etc.

As a trusted supplier, we understand the importance of consumables in the manufacturing process, and we are committed to delivering products that meet the highest quality standards to fulfill our customers’ needs. 


Product Detail

Product Tags

Silicon nitride combined with silicon carbide kiln has the characteristics of high temperature strength, good thermal shock resistance, easy deformation, oxidation resistance, corrosion resistance, good thermal conductivity and so on.

Refractory Brick (4)

Main performance indicators

Item

Firebrick index

Kiln specification

Index of shaped product

Apparent porosity%

<16

<16

<14

Bulk densityg/cm3

2 2.65

2 2.65

2 2.68

Compressive strength at room temperatureMPa

2 160

2 170

2 180

Bending strength at room temperature1400X MPa

2 40

2 45

2 45

High temperature bending strength1400r MPa

2 50

2 50

2 50

Coefficient of thermal expansion110CTCxioVC

<4.18

<4.18

<4.18

Thermal conductivity1100C

216

2 16

216

Refractories°C

1800

1800

1800

0.2 MPa Softening temperature under loadX:)

1600

1600

> 1700

Maximum operating temperature °C

1550

1550

1550

The products are widely used in ceramic grinding wheel, high aluminum products, aluminum porcelain ball, industrial kiln, electronic ceramic, high voltage electric porcelain, sanitary ware, daily porcelain, nitride alloy and foam ceramics and other industries.

The wear resistance of Si3N4-SiC material is 3.13 times that of wear-resistant steel (Crl5Mo3), and the weight is only 1/3 of that of wear-resistant steel (Crl5Mo3).

The corrosion resistance quality reduction values of Si3N4-SiC and calcium carbide and alumina in various solutions are as follows:

Test solution

 Temperature("C)

Si3N4-SiC

Common ceramics

Aluminium carbide

Aluminium oxide

98 %Sulfuric acid

100

1.8

55.0

> 1000

65,0

50 %Sodium hydroxide

100

2,5

> 1000

5.0

75.0

53 %Hydrofluoric acid

25

< 0.2

7.9

8.0

20,0

85 %Phosphoric acid

100

< 0.2

8.8

55.0

> 1000

70 %Nitric acid

100

< 0.2

0.5

> 1000

7,0

45 %Potassium hydroxide

100

< 0.2

> 1000

3.0

60,0

25 %Hydrochloric acid

70

< 0.2

0.9

85.0

72,0

10% Hydrofluoric acid +57% Nitric acid

 

25

< 0.2

> 1000

> 1000

16,0

Kiln Furniture (7)

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