Керамическая клапанная пара (шар-седло)

Material:ZrO2

Материал: ZrO2

Material:Si3N4

Материал: Si3N4

Symbol:C1

Symbol:C2

Density:

6.05

g/cm³

Density:

3.23

g/cm³

Water absorption

0

%

Water absorption

0

%

Coefficient of thermal expansion

10.5

10－6/K

Coefficient of thermal expansion

3.2

10－6/K

Young’ s modulus

210

GPa

Young’ s modulus

300

GPa

Poisson ratio

0.3

/

Poisson ratio

0.26

/

Hardness(HV)

1200

MPa

Hardness(HV)

1500

MPa

Bending strength(Room temperature)

950

MPa

Bending strength(Room temperature)

720

MPa

Bending strength (770℃)

210

MPa

Bending strength (770℃)

450

MPa

Compressive strength

(room temperature)

2000

MPa

Compressive strength

(room temperature)

2300

MPa

Fracture toughness

10

MPa .m1/2

Fracture toughness

6.2

MPa .m1/2

Thermal conductivity (room temperature)

2

W/m k

Thermal conductivity (room temperature)

25

W/m k

Specific resistivity (room temperature)

>10 15

O.mm²/m

Specific resistivity (room temperature)

>10 13

O.mm²/m

Maximum service temperature

750

℃

Maximum service temperature

1050

℃

Acid and alkalicorrosion resistance

good

  /

Acid and alkalicorrosion resistance

good

  /

Remarks:

Good wear,high temperature,good corrosion,resistance medium shock

Remarks:

Good wear,high temperature,good corrosion,resistance medium shock,light shock