Highly Porous Open Cell GOLD FOAM
Introduction
- GOLD FOAM is an open‑cell gold metal foam with ultra‑high purity (typically ≥99.99% Au) and porosity up to about 70–98%. Its 3D interconnected pore structure provides very large surface area, excellent electrical conductivity and good thermal conductivity, making it ideal as a current collector and substrate for electrocatalysts, sensors, fuel cells and advanced battery electrodes. The foam can be supplied in sheets or rolls with customized thickness, pore size (PPI) and density to fit different electrochemical and laboratory applications.
- Thanks to the stable metallic gold framework, GOLD FOAM offers outstanding corrosion resistance in most acid and salt solutions, while maintaining mechanical strength and electrical performance over long‑term operation. It can be easily cut, punched and formed into various shapes, and is also used in EMI/EMC shielding, precision filtration, heat dissipation modules and high‑end decorative or luxury products where a real metallic gold appearance and high conductivity are required.
Specifications
| Type | Open cell |
| Purity | Au ≥ 99.99% |
| Form | Sheet, roll or custom blocks, depending on size & thickness |
| Cell Size (PPI) | 10–100 PPI, or customized as per request |
| Thickness | Standard: 0.10–20 mm; other thicknesses can be customized |
| Size & Shape | Standard sheets: 100 × 100 mm / 200 × 300 mm; can be cut or made into different shapes as per request |
| Porosity | 70% – 98%, depending on specification |
| Open Cell Rate | ≥ 95% |
| Volume Density | 0.3–1.2 g/cm³, adjustable as per request |
| Surface Density | 200–5000 g/m², as per request |
| Thermal Conductivity (Effective) | Typically 1–10 W/m·K (depends on porosity and structure; bulk gold ~318 W/m·K) |
| Mechanical Strength (Compressive) | Typically 1–5 MPa (depends on density and pore size) |
| Average Tensile Strength (N/20mm) | Vertical ≥ 20, horizontal ≥ 15 (typical values, can be adjusted according to actual product) |
| Temperature Resistance (Inert Atmosphere / Vacuum) | ≥ 500 ℃ (gold melting point 1064 ℃; effective use temperature depends on application and environment) |
| Appearance | Metallic gold, uniform color, without obvious defects such as black spots, blind holes, through holes, cracks, etc. |
| Chemical Composition | Au ≥ 99.99%; impurities (Ag, Cu, Ni, etc.) each typically ≤ 0.01% |
| Electrical Conductivity | High electrical conductivity; bulk gold resistivity ~2.4 × 10⁻⁸ Ω·m (effective value depends on porosity and foam structure) |
| Corrosion Resistance | Excellent resistance to oxidation and most acids; not suitable for aqua regia and certain strong complexing agents |
| Flexibility | Good flexibility for thin sheets; can be bent and slightly compressed without breaking (depends on thickness & PPI) |
| Elongation Rate (%) | Vertical ≥ 3, horizontal ≥ 5 (typical for thin, high‑porosity foam) |
| Applications | Electrocatalyst support, battery electrodes, fuel cell current collectors, EMI shielding, filtration, high‑end decorative and luxury crafts |
Dimension (Thickness* Length*Width)
| 0.08mm*300mm*200mm | 0.2mm*200mm*300mm | 0.3mm*200mm*300mm |
| 0.5mm*200mm*300mm | 0.7mm*200mm*300mm | 0.9mm*200mm*300mm |
| 1.0mm*200mm*300mm | 1.3mm*200mm*300mm | 1.5mm*200mm*300mm |
| 1.7mm*200mm*300mm | 2.0mm*200mm*300mm | 5mm*200mm*300mm |
| 10mm*200mm*300mm | 30mm*200mm*300mm | The size can be customized |
To customize various metal foams, please click the picture below for details：
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