Properties of Copper Foam

Jan 10, 2023

Thermal Conductivity
For its size and weight, the product has high heat conductivity. Heat transmission to/from fluids moving through the foam is substantially increased compared to solid fins because of the increased surface area. Because of the enormous surface area is also suited for usage with phase change materials (PCM), which enhances coupling to PCM.

Pressure Tolerance
When anyone pressures the metal foam sheet structure, it initially yields elastically. However, due to the sample size, the structure begins to bend and constantly collapses at a pretty constant tension at around 4-6% of strain. This continual collapse will progress to approximately 50-70% of strain depending on the initial volume concentration of the foam. As the compressed foam reaches the “compaction” phase, the stress/strain curve will climb. The pressure tolerance of the foam is the point on the stress/strain curve when it switches from the elastic to plastic deformation phase. That is a crucial engineering parameter since it is necessary for any structure that keeps its form under design load to operate below that level.

Conductivity of electricity
Copper is an excellent conductor. As a result, researchers can use the foam as a conducting medium or as an electrode in dielectrics. It’s also shielded against electromagnetic radiation. It is because of the foam’s massive surface area.

Density
We create this product from solid copper that has a low density. The resultant foam is extraordinarily light and popular in weight-sensitive aeronautical applications. We can lower the relative density of the foam to 3% to 12%. Post-foaming compression is excellent for generating higher densities. It has a max tensile ratio as well. It’s a perfect choice for lightweight construction applications. It is an appropriate medium for goods such as aviation air oil separators due to its high surface area/volume and improved tortuosity, which may be modified to provide optimal pressure drop.

Coatings
The copper sheet foam may be anodized, chemically coated, and metal-plated in the same way as solid copper can for better corrosion resistance and heat conductivity.

Corrosion Resistance
This layer is generally stable at pH levels ranging from 4.5 to 8.5. Copper is exceptionally corrosion-resistant within that pH range. Copper innately has a strong oxide coating that helps resist corrosion.