Quartz (SiO2) Parts

Properties

Condition

Value

Unit

SiO2

Density

g/cм3

≥ 1,85-2,0

Bending strength

МPа

>25

Compressive strength

МPа

50-120

Porosity

%

<5-15

Coefficient of thermal expansion

100-1000 °C

10-6 /°C

<0,6

Thermal conductivity

20C

W/м∙K

0,66

Max.working temperature

°C

1650

Properties

Conditions

Value

Unit

SiO2

Density

g/см3

2,2

Flexural strength

МPа

67

Compressive strength

МPа

1100

Poisson's ration

0,14-0,17

Modulus hardness

Mohs hardness

Transformation point

Softening point

Low thermal expansion coefficient

100-1000 °C

10-6 /°C

<0,55

Thermal conductivity

20C

W/м∙K

1,4

Short-term use temperature

°C

1300

Long-term use temperature

Min thickness

Max thickness

Properties

0-10⁶ Hz

3×1010 Hz

Clear

3,70

3,81

Not Clear

3,50

3,62

Properties

1 GHz

1 МHz

Clear

5*10-4

<1*10-4

Not clear

(6-20)*10-4

(5-15)*10-4