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Durox UHP

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Description

Materion’s Durox® family of alumina ceramic materials provides a cost competitive solution to high performance engineered requirements.

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Properties

General

Density

ρ

3.95 g/cm³ at 20 °C

Grain size

dgrain

1 μm

Water absorption

cwater

0 % at 20 °C

Mechanical

Compressive strength

Rmc

2.41 MPa at 20 °C

Elastic modulus

E

375 GPa at 20 °C

Flexural strength

σbend

379 MPa at 20 °C

Fracture toughness

KIC

4 MPa·√m at 20 °C

Hardness, Rockwell Superficial 45-N

HR 45-N

85 [-] at 20 °C

Poisson's ratio

ν

0.22 [-] at 20 °C

Tensile strength

Rm

276 MPa at 20 °C

Thermal

Coefficient of thermal expansion

α

8E-6 1/K at 20 °C

RT to 1000°C

Specific heat capacity

cp

837.36 J/(kg·K) at 20 °C

Thermal conductivity

λ

35 W/(m·K) at 20 °C

Electrical

Dielectric constant, 10GHz

εr,10GHz

9.6 [-] at 20 °C

Dielectric constant, 1MHz

εr,1MHz

9.7 [-] at 20 °C

Dielectric strength

EDS

0.22 kV/mm at 20 °C

AC, 6.35mm

Dissipation factor, 10GHz

ε''10GHz

1E-4 [-] at 20 °C

Dissipation factor, 1MHz

ε''1MHz

1E-4 [-] at 20 °C

Electrical resistivity

ρel

1.00E+13 Ω·m at 20 °C

Minimum

Technological properties

Application areas

photonics/ lasers, defense, energy, telecommunications and semiconductor manufacturing

Color

White

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This material data has been provided by Materion Brush GmbH.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.