The weight is half of the steel! Hard but flexible! Excellent heat resistance, insulation, and wear resistance! Hardness and toughness are controllable and suitable for a variety of usages! In the event that you are searching for these types of materials, CITIZEN FINEDEVICE’s SiALON is recommended.

TOP > SiAlON

Please contact us if you would like to try SiALON!

Please contact the following phone number if you have any question for SiAlon.
Miyota Wokrs +81-267-31-1133 ※Open hours 8:30~17:30
(Except weekends and holidays)

Thermal expansion coefficient is low only 1/5 that of steel,
and it is a lot lighter than metal.
Mechanical characteristics are high, and its wear resistance is excellent. Please feel free to try.

We can control the hardness and toughness     according to the usage.

We can customizing the characteristics             according to the customer requests.

Ceramics have the same characteristics as silicon nitride.
Technology honed during many years, control the hardness and toughness of the SiALON.

CITIZEN FINEDEVICE mix and crush the raw materials of alumina and zirconia with a binder to make the optimum granules for our press processing with a spray dryer. This makes it possible to increase dimensional accuracy and strength.
Additionally, we provide products with characteristics suited to their application by controlling the strength and toughness values  of the new material SiAlON using our unique blend.

We can customizing the characteristics according to the customer requests.

       After molding press

We propose the best manufacturing methods according to the customer usage requirements. We apply our technology, which we developed over many years,  and strive to supply products at the price that meets customer request.                  Currently our products are utilized in several industries, and we try to promote our products to be used in variety of industries in the future.

Comparison with other ceramics
Material nameSialonZilconiaAluminaSilicon nitride

High-carbon chrome bearing steel (SUJ2)

Specific gravity3.26.03.93.27.8
Vickers hardness value (Hv)1600130017001500700
Fracture toughness (Mpa√m)6.05.83.06.015
Thermal expansion coefficient3108310

SiAlON’s characteristics

SiAlON is a ceramic material is based on silicon (Si) and is also comprised of aluminum (Al), oxygen (O), and nitrogen (N), the name was derived by combining the initial letters of the component elements. Its major characteristics are high hardness, high toughness (which means that it does not crack easily), combined with excellent heat resistance and abrasion resistance. With a specific gravity less than half that of iron, it is lighter than even titanium with a specific gravity of 4.5, and it can substitute for other metals in terms of function.                                                                          Added to that, our company’s strength is the ability to manufacture products matched to the application by combining Citizen Finedevice’s unique processing technologies to control the hardness and toughness values.

Characteristics

– Good thermal characteristics and very stable

– Good mechanical characteristics and excellent abrasion resistance
– Achieves high strength with pressureless sintering. This is reflected in its very low manufacturing costs                                                                                                      – Extremely low level of unreacted components because this is a product made by firing SiAlON raw materials

Applications

  • – Compact precision sliding bearings
    – Bearing balls
    – Automotive components
    – Cutting tools

Please contact us if you would like to try SiALON!

Please contact the following phone number if you have any question for SiAlon.
Miyota Works +86-267-31-1133 ※Open hours 8:30~17:30
(Except weekends and holidays)

FAQ about SiAlon

What ranges of dimensions are available?

Dimensions from 0.5mm to 6mm are available.      Please ask for further information.

What shapes are available?

Cylinder, Sphere, etc… are available.

What colors are available?

Gray, black, etc… are available.

Is the hardness only available up to HV1,600?

Our development has achieved up to HV1,700.

Please contact us if you would like to try SiALON!

Please contact the following phone number if you have any question for SiAlon.
Miyota Works +86-267-31-1133 ※Open hours 8:30~17:30
(Except weekends and holidays)