ALUMINA C799

ALUMINA C799

ALUMINA C799

ALUMINA C799

Basic properties

Very hard Abrasion resistant Can be milled with great precision Can be polished Stable at high temperatures No open porosity Excellent electrical properties Chemically inert High corrosion resistant.

Applications

Mechanical components Pistons, pump stages Mechanical seals Sealing bushes Faucet keys and seats Electrical insulator Pyrometry Laboratory items, crucibles Vacuum items Welding nozzles.

Realisations

Chemical composition: Aluminium Oxide 99,7% / Silica: 0,05% / Magnesia 0,03 % Sodium Oxide 0,15% / Iron oxide 0,02% / Calcium Oxide 0,03% / Titanium Oxide <0,01 / Boron Oxide <0,02%

GRAPHITE

GRAPHITE

GRAPHITE

GRAPHITE

Extruded Graphite

Basic properties

Good resistance to thermal shocks
Good dimensionnal stability

Good thermal conductivity
Good electrical conductivity
High density and high mechanical strength
Low impurity, so high resistance to oxidiation

Applications

Crucibles and incinerating dish
Furnace equipments
Suceptors for induction furnaces
Heat exchanger
Moulds

Isostatic molded Graphite

Basic properties

Thin grain
High mechanical strenght
Machinable with high precision
Can obtain very good surface estate
High thermal shock resistance due to:
A low thermal expansion coefficient
A high thermal conductivity
A low elastic modulus

Applications

Sintering molds
Casting dies
Nozzles
Tools for composites shaping
Electroerosion

High grade isostatic molded Graphite

Basic properties

Electroerosion
Semi-conductors
Diamond sintering
Glass industry
Chemistry

Applications

Isotrope structure (perfect homogeneity)
Fine grain size
High density
Consistency of mechanical and electrical
characteristics due to an advanced technology
manufacturing process

Realisations

associated products ↓

TRANSPARENT CERAMIC

TRANSPARENT CERAMIC

TRANSPARENT CERAMIC

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.

associated products ↓

ZIRCONIA OXIDE

ZIRCONIA OXIDE

ZIRCONIA OXIDE

ZIRCONIA OXIDE

Basic properties

Very hard
Resists to high temperatur
Low thermal conductivity
Can be polished
Relatively flexible

Applications

Wear parts
Hot extrusions dies
Welding centring pins
Mechanical components for use at all temperature
Cutting tools, kitchen knives
Medical
Dental technicien
Scrapers
Doctor rings for pad printing

Realisations

SAPPHIRE

SAPPHIRE

SAPPHIRE

SAPPHIRE

Basic properties

High mechanical strength
High thermal stability
High heat transmission
Chemically inert
Very high electrical insulation
Very high hardness
Very good wear resistance
Low friction coefficient
High temperature resistance
Good optical properties
Good resistance to acids
UV transparent, infrared and visible radiation.

Applications

Semi-conductor wafers
Watch windows
Electronical applications
Measuring tools.
Optical prisms and lenses
Pistons

Realisations

SHAPAL

SHAPAL

SHAPAL

SHAPAL

Basic properties

Bexcellent workability
Can be used to make precision parts
Airtight in vacuum.
Very high thermal conductivity ( approx. five times higher than Alumina)
Very good mechanical resistance (Resistance to flexion = 30 kg/mm2) comparable to Alumina
Excellente electrical insulator
Low expansion coefficient
Resists to high temperatures
Low dielectric loss
Very high purity

Applications

Prototypes and small series
Parts for vacuum
Parts for electronics requiring electrical insulation and heat dissipation
Crucible for vapour deposition

associated products ↓

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