Ceramic Foam

What is Ceramic Foam?

Ceramic foam is a skeletal material with a rigid, highly porous and permeable structure; all Duocel foams have controlled density of material per unit volume.

Our most popular ceramic foam is silicon carbide.

The matrix of cells and ligaments is completely repeatable, regular, and uniform throughout the entirety of the material.

All of our foam is open cell, or reticulated metal foam.  This allows for superior liquid flow and energy absorption for a variety of applications.

Physical Characteristics of Duocel® Ceramic Foam (8% Nominal Density)

Compression Strength200 psi(1.38 MPa)
Flexural Strength400 psi(2.76 MPa)
Shear Strength100 psi(.69 MPa)
Mohs Hardness9 Mohs 
Young’s Modulus4 × 105 psi(2.76 MPa)
Knoop Hardness (100gm)2500 
Poisson’s Ratio0.22 
Bulk Thermal Conductivity  
· 482°F (250°C)3.05 BTU/ft · hr · °F(5.28 W/m · °C)
· 1832°F (1000°C)1.07 BTU/ft · hr · °F(1.85 W/m · °C)
· 2642°F (1450°C).77 BTU/ft · hr · °F(1.34 W/m · °C)
Coefficient of Thermal Expansion3.4 BTU/ft-hr-F(5.8 W/m-C)
· Room Temperature1.22 × 10-6 in/in · °F(2.2 × 10-6 m/m · °C)
· 392°F (200°C)2.06 × 10-6 in/in · °F(3.7 × 10-6m/m · °C)
· 932°F (500°C)2.56 × 10-6 in/in · °F(4.6 × 10-6 m/m · °C)
· 1292°F (700°C)2.72 × 10-6 in/in · °F(4.9 × 10-6 m/m · °C)
Bulk Resistivity at Room Temperature· 4 × 105 ohm · in(1.016 × 105 ohm · cm)
Sublimation Point4892°F(2700°C)
Max Continuous Use (Inert)3992°F(2200°C)
Oxidation Resistance3002°F(1650°C)

Thermal Conductivity

Ceramics such as silicon carbide (SiC) have high thermal conductivity. Because of the high surface area of Duocel® foam, heat transfer to/from fluids flowing through the foam is greatly accelerated.

Duocel® silicon carbide foam is also ideal for use with phase change materials (PCM) because of the large amount of surface area, which increases coupling to PCM.

Please visit our thermal conductivity page in the technical data section for a more in depth explanation of how materials and properties effects the thermal conductivity of Duocel® foam.

Electrical Conductivity

Duocel® ceramic foam can be used in electrochemical processes that require low electrical and fluid flow resistance. This is in stark contrast to most ceramics, which do not conduct electricity. Duocel® supplements its strength in this type of application with its increased ability to withstand extreme temperatures.

Please visit our electrical conductivity page in the technical data section for a more in depth explanation of how materials and properties effects the electrical conductivity of Duocel® foam.


For Duocel® ceramic foams weight it is exceptionally strong. This strength is also extended to high temperatures. On top of that SiC is is very scratch resists at 9 Mohs.


Duocel® ceramic foam is structurally stable at elevated temperatures. It has a very low coefficient of thermal expansion and is resistant to thermal shock.


Our ceramic foam can be made up to 1” thick at 100 PPI. Larger pore sizes can be made thicker. Please contact us for more info.

Corrosion resistance

Duocel® ceramic foam resists oxidation up to 3002F. Ceramic also has high resistance to acid corrosion.

It has a hardness that reduces the mechanical wear of the surface of the foam.


  • Low Density
  • High Strength to Weight Ratio
  • High Surface area to Volume Ratio
  • isotropic load response
  • controlled stress-strain Characteristics

General Properties

Density Range4-30+%
Max CompressionUp to 25x
PPI Available5, 10, 20, 30, 45, 60, 80, 100

All of our materials are proudly 100% Made in the USA.