In this section you will find some of the properties presently available for our foams. Bulk material properties are difficult to measure because of the strut shape. Properties in grey colour were thus taken from the literature, averaging Si-SiC materials properties with a similar microscopic structure. A special project to measure bulk Si-SiC properties is presently running.

ErbisicR Foam Properties

Computed tomograpy 3D rendering of ErbisicR (20×20x20mm) foam. (Courtesy of RX Solutions)

 

Porosity 10 PPI	Low density	Medium density	High density
Foam density [g/cm3]	0.253	0.323	0.407
Normalized density	0.09	0.114	0.144
Av. Strut Thickness [mm]	0.766	0.912	1.012
Flexural strength [MPa]	1.083	2.388	3.267
Compression strength [MPa]	2.552	-	7.275
Thermal conductivity [W/mK]	4	6	9

 

Foam properties 10 PPI	Bulk material density [g/cm3]	Macroporosity [%]	Microporosity [%]	Surface area [m2/m3]
Medium density	2,830	> 87%	< 1%	551,862

Residual flexural strength of low density ErbisiR foams ageing into a flat burner @ 25 kW power 

	After 10 h	After 100 h	After 1′000 h	After 10′000 h
Av. Residual M.O.R .	60 %	76%	67%	30%

Strut Properties

Density	2.83 g/cm3
Open Porosity	0.0 %
From the literature
Weibull Modulus		10.00
Mechanical Properties
Hardness, Mohs		9
Tensile Strength, Ultimate		400 MPa
Modulus of Elasticity		400 GPa
Compressive Yield Strength		2000 MPa
Poissons Ratio		0.24
Shear Modulus		165 GPa
Thermal Properties
CTE, linear		4.30 µm/m-°C
		at Temperature 25.0 °C
Specific Heat Capacity		1.10 J/g-°C
Thermal Conductivity		120 W/m-K
Maximum Service Temperature, Air		1500 °C

Strut Composition