Densité faible - Céramique technique

QUARTZ

Basic properties

High chemical purity
Very weak expansion coefficient
Very high thermal shock resistance
Working temperature : 1050°c
Peak temperature lapses: 1200°c
Can be worked when heated. Possibility to produce complex shapes
Can be welded
Very good optical properties. Transmission in UV spectrum

Applications

Sight discs
Optical
Semi-conductors.
Laboratory material
Electronic
Infrared

Realisations

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TUBES FOR FURNACES AND PYROMETRY

SILICON

Basic properties

Silicon material is a semi-conductor.
Its electrical conductivity is a lot inferior than metal ones.
It is not soluble in water (except at high temperature).
Silicon is attacked by hydrofluoric acid (HF) or mixed hydrofluoric and nitric (HNO3) depending on its phase.
The electrical conductivity of semi-conductor is between the insulators ones, and metal ones.

Applications

Semi-conductors
Photovoltaïc
Mechanical components
Aerospatial

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MACHINING TO DRAWING