Silicon Carbide ( SiC ) - Hot Pressed Silicon Carbide - Supplier Data by Goodfellow

Background

Silicon Carbide - Hot Pressed Silicon Carbide is a high density, high strength material which has been used in refractory applications for many years. It is now used for a wide range of engineering applications.Silicon Carbide - Hot Pressed Silicon Carbide can be highly polished and has potential for space-based mirrors, because of its high specific strength and stiffness compared with those of glass.

Key Properties

The key properties of Silicon Carbide ( SiC ) - Hot Pressed Silicon Carbide are tabulated below.

Table 1. Key properties

Chemical Resistance
Acids - concentrated Good
Acids - dilute Good
Alkalis Good-Poor
Halogens Good-Poor
Metals Fair
Electrical Properties
Dielectric constant 40
Volume resistivity ( Ohm.cm ) 103-105 @ 25 °C
Mechanical Properties
Compressive strength ( MPa ) 1000-1700
Hardness - Vickers ( kgf.mm-2 ) 2400-2800
Shear strength ( MPa ) 210-380
Tensile modulus ( GPa ) 200-500
Tensile strength ( MPa ) 400
Physical Properties
Apparent porosity ( % ) 0
Density ( g.cm-3 ) 3.15
Thermal Properties
Coefficient of thermal expansion ( x10-6 K-1 ) 4.5 @ 20-1000 °C
Melting point ( °C ) 2650-2950
Specific heat ( J.K-1.kg-1 ) 670-710 @ 25 °C
Thermal conductivity ( W.m-1.K-1 ) 90-160 @ 20 °C
Upper continuous use temperature ( °C ) 1500-1650

 

About Goodfellow

Goodfellow supplies metals, ceramics and other materials to meet the research, development and specialist production requirements of science and industry worldwide.

 

 

Source: Goodfellow

 

For more information on this source please visit Goodfellow.

 

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Submit