Machinable Glass Ceramic

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Description

Machinable Glass Ceramic has a continuous use temperature of 800ºC and a peak temperature of 1000ºC. Its coefficient of thermal expansion readily matches most metals and sealing glasses.It processes good machinability and can be lathed, milled, planed, ground, bored, incised and threaded. It also has the advantages of insulation, pore-free, high/low-temperature resistant, acid and alkali resistant and thermal impact resistant. In terms of machinability, it can take the place of aluminum oxide and boron nitride ceramics that are difficult to machine.

This material data has been provided by Innovacera.

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.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

2.6 g/cm³

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Mechanical

PropertyTemperatureValue

Compressive strength

23.0 °C

345 MPa

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Elastic modulus

23.0 °C

25.5 GPa

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Flexural strength

23.0 °C

94 MPa

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Poisson's ratio

23.0 °C

0.29 [-]

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

9E-6 1/K

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Specific heat capacity

23.0 °C

790 J/(kg·K)

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Thermal conductivity

23.0 °C

1.71 W/(m·K)

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Electrical

PropertyTemperatureValue

Dielectric constant

23.0 °C

6 - 7 [-]

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Dielectric strength

23.0 °C

45 kV/mm

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Electrical resistivity

23.0 °C

1.00E+18 Ω·m

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Loss tangent

23.0 °C

4E-4 [-]

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Technological properties

Property
Application areas

It is widely used for nuclear, microwave high vacuum insulation, high precision magnetism-free skeleton for aeronautic and astronautic electrical devices, ultra-high voltage insulation for electric motors and structural parts at strong erosion environments.

Processing methods

Crystal Growth