Résistance à la température jusqu'à 1000°c

MACOR

Basic Properties

Ceramic that can be worked with conventionnal metal tools
Does not require any annealing after machining
Can be used at high temperaure, in continuous work at 800°C and 1000°C at peak.
Low thermal conductivity: high temperature insulator
Excellent electrical insulator
No porosity, no degazeification
Strong and rigid unlike plastics
Is not prone to creep or deformation at high temperatures
Resists to radiation
Can be metallized in thick layers
Can be polished

Applications

Electronic and semi conductor industries
Vacuum and utlra high vacuum industries
Nuclear industries
Medical
Optical
Aerospace
Lasers

Realisations

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SEMI FINISHED PRODUCTS

MACOR

MACHINING TO DRAWING

CORDIERITE

Basic properties

Resists to high temperatures

Good resistance to thermal shock

Weak coefficient of thermal expansion

Porous structure

Weak mechanical strength

Weak linear expansion

Applications

Kiln furnitures
Furnaces components

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CERAMIC PLATES

MACHINING TO DRAWING

TRANSPARENT CERAMIC

Basic properties

Very high mechanical resistance (wear, abrasion…)
This ceramic represents a perfect substitute for sapphire, with lower price.
High temperature resistance > 1200°c.
Perfectly dense material.
High RIT in the visible, UV and IR (such as sapphire and quartz).
Machinable with high precision
Polishable
No open porosity

Applications

Balistic Armor windows
Missile domes
Transparent watch body
Security windows
High pressure windows
High temperature windows
Wear resistance windows

Specifications :
Diameter tolerances: +0.0/-0.1mm
Thickness tolerances: ±0.2mm
Transparency: >80%
Parallelism: <3’ Frontwave dispersion: λ per 25mm at 632nm Bevel: <0.35mm ×45º

Available standard dimensions :
-Diam 25 x ép. 3 mm
-Diam 30 x ép. 2 mm
-Diam 50 x ép. 5 mm
-Diam 76 x ép. 3 mm
-Diam 100 x ép. 6 mm
-Diam 150 x ép. 10 mm
-Diam 200 x ép. 10 mm
-Diam 100 x ép. 6 mm
-Diam 150 x ép. 10 mm
-Diam 200 x ép. 10 mm

*These datas are for information purpose only. They do not engage SCERAM’s responsibility.

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MACHINING TO DRAWING

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