Toyo Siliconized graphite SiC/C Composites｜Surface Treatment

Toyo Siliconized graphite SiC/C Composites

Toyo Siliconized graphite is a material with a composite layer of silicon carbide (SiC) and graphite (C).The material has excellent properties of both silicon carbide and graphite, and not only are they ideal for sliding material applications, the surface layer of the graphite substrate is covered with a fine SiC layer, making it ideal for high-temperature atmosphere applications as well.

断面写真.png — Cross-sectional Photo of SiC/C Composite Layer

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特長

Feature

SiC/C composite layer can be applied to an entire product or just the areas required.
Composite layer can be formed from the surface to deep within the material.
Excellent blister resistance and enhanced wear and oxidation resistance.
Graphite substrate does not lose workability.
A SiC layer forms on the processing surface, enhancing oxidation resistance and reducing scattering from the graphite substrate.

Application

・Metallurgic members
・Mechanical seals
・Bearings

Cross-sectional Photo of SiC/C Composite Layer

Properties/Test Data

■Diagram of Example SiC/C Composite Product

SiC/C composite layer can be applied to an entire product or just the areas required.
The inner diameter of the bearing can be processed after becoming a composite, thereby falling within the tolerance.

■Sliding Application

(Blister Test)

Because the material retains a high mechanical strength and the sliding surface has a moderate surface roughness, it is easy to form a lubricating layer on the sliding surface, and it is difficult for blisters to form when using liquid oil.