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Quartz

Composition

SiO2

quartz overview

Synthetic quartz or fused silica (silicon oxide, SiO2) ceramics exhibit excellent thermal shock resistance due to extremely low thermal expansion and extreme purity. These unique properties and thermal stability allow CoorsTek quartz to be used in rapid thermal processing, optics, and critical semiconductor fabrication steps, like single crystal silicon pulling.

  • Thermal Shock Resistance
  • Transparent
  • High Purity
  • Corrosion Resistance

Example Applications

  • High purity crucibles

  

CoorsTek Formulations

Contact a CoorsTek expert to choose a Quartz solution for your application.

Property Units Value

Flexural Strength, MOR (20 °C)

MPa

105

Fracture Toughness, KIc

MPa m1/2

1.0

Thermal Conductivity (20 °C)

W/m K

1.4 - 1.5

Coefficient of Thermal Expansion

1 x 10-6/°C

0.5 - 0.65

Maximum Use Temperature

°C

1000 - 1200

Dielectric Strength (6.35mm)

ac-kV/mm

-

Dielectric Loss (tan δ)

1MHz, 25 °C

10-4

Volume Resistivity (25°C)

Ω-cm

1013

The information provided on this chart is for general material property reference only.  The customer should recognize that exact properties of materials may vary according to product configuration but close control of values of most properties can be maintained, if specified. Nothing herein is provided, or is to be construed, as absolute engineering data or constituting a warranty or representation. Contact CoorsTek for cost-effective design, development and manufacturing assistance. CoorsTek has 300+ variations including various forming and firing processes, not all variants are represented in the present website.

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