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材料名稱

Ceramic Material

99.5%-AL2O3

SSiC

HP-Si3N4

GPS-Si3N4

ZrO2- Y2O3

機械性能

Mechanical Properties

Units

/ Metric/Imperial

/ Metric/Imperial

/ Metric/Imperial

/ Metric/Imperial

/ Metric/Imperial

密度

Density

g/cm3

(lb/ft3)

3.89

(242.8)

3.1

(193.5)

3.29

(205.4)

3.27

(204)

6.04

(205.4)

氣孔率

Porosity

%

(%)

0

(0)

0

(0)

0

(0)

0

(0)

0

(0)

顏色

Color

ivory

black

black

black

ivory

彎曲強度

Flexural Strength

MPa (lb/in2x103)

379

(55)

550

(80)

830

(120.4)

689

(100)

900

(120.4)

彈性模量

Elastic Modulus

GPa (lb/in2x103)

375

(54.4)

410

(59.5)

310

(45)

310

(45)

200

(45)

剪切模量

Shear Modulus

GPa (lb/in2x106)

152

(22)

韋布爾系數(shù)

Bulk Modulus

GPa (lb/in2x106)

228

(33)

泊松比

Poisson’s Ratio

0.22

(0.22)

0.14

(0.14)

0.27

(0.27)

0.24

(0.24)

抗壓強度

Compressive Strength

MPa (lb/in2x103)

2600

(377)

3900

(566)

硬度

Hardness

Kg/mm2

1440

2800

1580

1450

1300

斷裂韌性

Fracture Toughness KIC

MPa?m1/2

4

4.6

6.1

5.7

13

最高使用溫度

Maximum Use Temperature
(no load)

°C

(°F)

1750

(3180)

1650

(3000)

1000

(1830)

1000

(1830)

1500

(2730)

熱性能

Thermal

Units

/ Metric/Imperial

/ Metric/Imperial

/ Metric/Imperial

/ Metric/Imperial

/ Metric/Imperial

導(dǎo)熱系數(shù)

Thermal Conductivity

W/m°K (BTU?in/ft2?hr?°F)

35

(243)

120

(830)

30

(208)

29

(201)

2

(13.9)

熱膨脹系數(shù)

Coefficient of Thermal Expansion

10–6/°C

(10–6/°F)

8.4

(4.7)

4.0

(2.2)

3.3

(1.8)

3.3

(1.8)

10.3

(5.7)

比熱

Specific Heat

J/Kg?°K (Btu/lb?°F)

880

(0.21)

750

(0.18)

電性能Electrical

Units

/ Metric/Imperial

/ Metric/Imperial

/ Metric/Imperial

/ Metric/Imperial

/ Metric/Imperial

電絕緣強度

Dielectric Strength

ac-kv/mm (volts/mil)

16.9

(420)

semiconductor semiconductor

介電常數(shù)

Dielectric Constant

@ 1 MHz

@ 1 MHz

9.8

(9.8)

電阻率

Volume Resistivity

ohm?cm

>1014

102–106

>1010