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Alumina 995

Composition

Nom 99.5% Al2O3

Description

High purity alumina for applications requiring alumina's excellent mechanical properties and a high purity composition in order to minimize contamination.

Example Applications

  • Semiconductor Wafer Fabrication Components
  • Precision Measurement Components

CoorsTek Formulations

Contact a CoorsTek expert to choose an Alumina 995 solution for your application.

  • 18+ unique compositions manufactured globally
Columns
Property Units Value

Flexural Strength MOR, (20°C)

MPa

330-545

Compressive Strength, (20°C)

MPa

2000-2600

Fracture Toughness, KIc

MPa m1/2

4.0-5.0

Hardness, Rockwell 45N

R45N

81-84

Hardness, Knoop 1000gm

GPa

13.7-16.5

Maximum Use Temperature

°C

1500-1800

Coefficient of Thermal Expansion, (25-1000°C)

1 x 10-6/°C

8.2-8.4

Thermal Shock Resistance, (∆T)

°C

200-220

Thermal Conductivity, (20°C)

W/m K

27.5-37.1

Dielectric Strength, (6.35mm)

ac-kV/mm

8.7-9.4

Dielectric Constant, (1 MHz)

25°C

9.7-9.9

Volume Resistivity, (25°C)

ohm-cm

>1014

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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