Quartz glass machinable ceramic

Quartz - Machinable ceramic

Final Advanced Materials provides a range of quartz parts : rods, tubes, boards, machined parts according to your drawings... We can machine quartz part and also a full range of technical ceramics.

The electrical fusion process uses resistance heating to melt highly refined quartz sand into semi finished quartz glass products.

Quartz main characteristics

  • High purity level
  • Low bubble content
  • High homogeneity
  • Excellent thermal shock resistance
  • High visible and IR transmission
  • Very good thermal insulation
  • Maximum temperature 1300°C (1100°c continuously)

Quartz applications

  • Furnace tubes for horizontal and vertical furnaces
  • Longboats
  • Various sorts of carriers
  • Baffles
  • Laser drilled injectors
  • Doorplates
  • Pedestals
  • Spare parts for loading systems
  • TC-sheaths
  • Etch and cleaning containers
  • Optical windows
  • Combustion tubes for analyzers
  • Laboratory glassware
  • Ceramic products
  • Products according to customer specifications
  • Cleaning and repair
  • 3D measurement

Technical data

Properties

Units

Quartz (electrically fused)

Composition

PPM

Al=15 - Ca=0.5 - Cu<0.05 - Cr<0.05 - Fe=0.1 - K=0.4 - Li=0.6 - Mg=0.05 - Mn<0.05 - Na=0.3 - Ti=1.1 - Zr=0.7

Mechanical properties 20 °C

Densité (g/cm3)

g/cm3

2.2

Hardness

Mohs

Knoop (N/mm²)

5.5 - 6.5

5800 - 6100

Modulus of Elasticity at 20°C

N/mm²

7.25 x 104

Modulus de rigidity

N/mm²

3 x 104

Poisson's ration

-         

 

0.17

Compressive Strength

N/mm²

1150

Tensile Strength

N/mm²

50

Flexural Strength

N/mm²

67

Torsion Strength

N/mm²

30

Sound Propagation Speed

m / s

5720

Thermal properties

Softening Temperature

°C

1710

Annealing Temperature

°C

1125

Max Continuous use Temperature

°C

1160

Peak Temperature

°C

1300

Specific Heat

J/kgK (0 - 100 °C)

J/kgK (0 - 500 °C)

J/kgK (0 - 900 °C)

772

964

1052

Thermal Conductivity

W/mK (20°C)

W/mK (100°C)

W/mK (200°C)

W/mK (400°C)

W/mK (950°C)

1.38

1.47

1.55

1.84

2.68

Coefficient of Thermal Expansion

10-7/°K (0-100°C)

10-7/°K (0-600°C)

10-7/°K (0-900°C)

10-7/°K (-50-0°C)

5.1

5.4

4.8

2.7

Electrical properties

Dielectric Strength

Ω.cm (20°C)

Ω.cm (400°C)

Ω.cm (800°C)

Ω.cm (1200°C)

1018

1010

6.3x106

1.3x105

Dielectric Capacity

kV/mm (20°C)

kV/mm (50°C)

25 – 40

4 - 5

Dielectric Loss

tg δ (1 kHz)

tg δ (1 MHz)

tg δ (3x1010 Hz)

5 x 10-4

1 x 10-4

4 x 10-4

Dielectric Constant

ε (0 – 106 Hz)

ε (9x108 Hz)

ε (3x1010 Hz)

3,7

3.77

3.81

Indicative values. The characteristics of the material may vary depending on the part and the process. Contact us for more information's.

Machinable technical ceramics (873.92k)

Machinable technical ceramics data sheet.