لوله های سرامیکی آلومینا عایق برق صنعتی

ITEM

UNIT

99.9 ALUMINA

Density

G/cm3

3.94

Bending Resistance

Mpa

500

Compressive Strength

Mpa

3300

Elasticity Modulus

Gpa

400

Shock Strength

Mpam/2

5.2

Vaporization Coefficient

M

12

Vickers Hardness

HV0.5

2000

Thermal Expansivity

10-6K-1

8.0

Conductivity

W/MK

28

Thermal Shock Resistance

AT℃

280

Maximum Service Temperature

℃

1750

20℃ Volume Resistance

Ω

≥1015

Dielectric Strength

KV/mm

30

Apparent Porosity

％

0

Permittivity

Er

10

Dielectric Loss Angle

tanδ

0.001

ITEM

LS-110

LS-120

LS-130

LS-110F

LS-220

LS-210

LOI(％)

0.02

0.02

0.05

0.08

0.03

0.01

Na₂O(％)

0.05

0.04

0.03

0.05

0.07

0.08

SiO₂(％)

0.07

0.07

0.07

0.09

0.02

0.02

Fe₂O₃(％)

0.03

0.03

0.03

0.03

0.02

0.02

Al₂O₃(％)

99.9

99.9

99.9

99.9

99.9

99.9

average grain diameter(um)

1.7

2.1

2.2

1.1

2.7

2.9

αgrain diameter(um)

1-2

1-3

2-4

1-2

2-3

3-5

BET Surface Area(m²/g)

1.9

1.4

1.4

3.2

1.6

0.9

Pressure-induced volume density(g/cm3)*

2.22

2.27

2.31

2.29

2.22

2.32

Forming density(g/cm3)**

2.13

2.20

2.23

2.33

2.17

2.30

Sintering volume density(g/cm3)**

3.78

3.79

3.78

3.89

3.81

3.77

Line collection efficiency(％)

18.0

17.2

16.7

15.7

17.5

15.3