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1μm
The cross section of TiN film coated on thesteel
　　under-half of this photo shows the steel
Bewise Inc. www.tool-tool.com
Reference source from the internet.
The ceramics has many excellent properties such as the wear resistance, thermal resistance, corrosion resistance and they come to be applied widely in these fields. However, the form of the work to coat was restricted, because the machining after coating is very difficult, while ceramic coating has many advantages.

Because of this reason, it becomes possible to make the unique composite material that combines the excellent advantage of the base material and ceramics by Coating of the ceramics.

It becomes possible to improve tool performance, friction performance and life more substantially by the reduction of wear resistance, friction coefficient in comparison with the conventional Coating materials by applying such ceramic coating to the tools, metallic molds and machine parts.
The main Properties of some kinds of Coating materials
　materials
Hardness **

Wear rsistance

Resistance to seizing

Corrosion resistance

Resistance to oxidizing

Electrical insulation

Sleeving
TiN

1700-2000

◎

○

○

△～○

-

○
TiAlN

3500-4000

◎

◎

◎

◎

-

-
TiC(TiCN)

3000-3200

◎

○

△～○

△

-

-
CrN

1500-1800

◎

◎

◎

○

-

◎
SiC

3000-3500

◎

○

○～◎

○

○

-
Si3N4

1800-2000

◎

◎

○～◎

○

◎

-
Al2O3

2000-2400

◎

○

◎

◎

◎

-
DLC*

2000-4000

◎

◎

◎

-

◎

◎
*Diamond-like Carbon　　＊＊unit：kg/mm2
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