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. 2024 Feb 5;9(6):6280–6295. doi: 10.1021/acsomega.3c08613

Table 1. Classification of Metallic Foam Open Cell vs Closed Cell.

open cell (metal sponge) closed cell (metallic foam)
• Cells are complex and interconnected, making it difficult to distinguish between them. • Cell faces and cell edges are clearly defined and not interconnected.
• Possesses less density • Possesses high density
• Possesses high porosity and are lightweight • High energy and crash absorption
• Under mechanical loading, they exhibit lower strength. • Under mechanical loading, they exhibit high compressive strength.
• Mostly used as heat exchangers, filters, and catalyst carriers • Mostly used in energy/impact absorption, vibration control, and mechanical damping.