ATC: TiC Reinforced Al2O3 Ceramics With High Carbide Content
From Oxide Ceramics - Ceramics On The Basis Of Sintered Corundum
Improved quality by new ceramic processing. Pressureless sintered or hot-isostatically pressed alumina ceramics with high contents of TiC or Ti(C,O,N) are characterized by a microstructure where the grain boundaries are free of any amorphous films. Adjusted compositions and technological approaches are developed to meet special requirements in technical applications and are used to produce individual prototypes and small series.
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Applications
- Sliding head substrates in data storage systems
- Equipment for sinter forging (e.g. glass lenses with high quality of surfaces)
- High precision wear-resistant parts (e.g. chucks for the automatic change of tools)
- Cutting tool inserts
- Substitution of Al2O3 to enable advantageous electroerosive processing of parts
Advantages
An important merit of the developed technology is the possibility to achieve improved properties without expensive hot pressing.
The advantages of the material:
- Compared with commercial pure alumina ceramics are an increased hardness and strength
- Compared with carbide-reinforced zirconia it is its the high oxidation resistance. The production of parts with complex geometries is enabled by the easy electroerosive processability of the electrically conducting material
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