SIGRASIC® Carbon Fiber Reinforced Silicon Carbide Short Fibers

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Description

SIGRASIC products derive their extraordinary properties from carbon fiber-reinforced silicon carbide (C/SiC) - a composite material that combines carbon fibers within a ceramic matrix to maximize the properties of both materials.

The benefits of SIGRASIC are:

Hard and ductile instead of being brittle
High resistance to most corrosive and abrasive media
Near net shape processing by in situ joining
Adjustable properties to meet specific customer requirements
High thermal-mechanical fatigue and high thermal shock resistance
High heat resistance – up to 1200 °C
Technology established within automotive serial production of brake disks

This material data has been provided by SGL Carbon.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Value
Density	2.1 - 3.0 g/cm³ Show Supplier Material materials with Density of 2.1 - 3.0 g/cm³

Mechanical

Property	Value
Elastic modulus	30.0 - 60.0 GPa Show Supplier Material materials with Elastic modulus of 30.0 - 60.0 GPa
Flexural modulus	0.3 GPa Show Supplier Material materials with Flexural modulus of 0.3 GPa
	0.5 GPa Show Supplier Material materials with Flexural modulus of 0.5 GPa
Flexural strength	50.0 - 90.0 MPa Show Supplier Material materials with Flexural strength of 50.0 - 90.0 MPa

Thermal

Property	Temperature	Value
Coefficient of thermal expansion	200 °C	1.8e-06 - 2.3e-06 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.8e-06 - 2.3e-06 1/K
Thermal conductivity		20.0 - 60.0 W/(m·K) Show Supplier Material materials with Thermal conductivity of 20.0 - 60.0 W/(m·K)

Technological properties

Property

Application areas

Application examples for SIGRASIC®: NASA sensor carrier designed for low weight, high precision and high stiffness; pump impeller for highly corrosive and abrasive media; (high performance) clutch disk mass produced for cars/vehicles with excellent wear and strength properties; ballistic protection with complex shaped designs and high hardness.

Other

Technical properties are customizable for individual purposes, base materials can be designed with the relevant content and type of carbon fibers.

Processing methods

C/SiC is manufactured by infiltrating a carbon fiber-reinforced carbon body with silicon. Due to near net shape processing, complex machining can be performed cost-effectively early in the process. Final ceramic grinding can be used locally when tight tolerances are required. By suitable adjustment of the material and process parameters, the product characteristics can be matched to the intended use of the SIGRASIC component.

SIGRASIC® Carbon Fiber Reinforced Silicon Carbide Short Fibers

Description

Ashby charts

Applications

Materials by this supplier

Use cases

Properties