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LCS Copper Foam

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Product Summary of Lost Carbonate Sintering (LCS) Porous Copper Foam

Goodfellow is delighted to announce the addition of an exciting new product to our range – LCS copper foam.

What is LCS Copper foam?

Unlike the copper foams we have had in our catalogue for several years, which are a permeable structure of cells and continuous ligaments with pore sizes of 4 to 16 pores /cm (10 to 40 PPI) and a relative density of around 9%, this new foam has much smaller pores (300 to 600µm) and a relative density of around 37%. This gives it a much higher surface area.

New LCS Copper Foam

Lost Carbonate Sintering Copper Foam Image 1

Traditional Copper Foams from Goodfellow

Lost Carbonate Sintering Copper Foam Image 2

Properties

Characteristics	New LCS Copper Foam	Other Copper Foams available from Goodfellow
CharacteristicsMaterial	New LCS Copper FoamCopper 99.7%	Other Copper Foams available from GoodfellowCopper 99.9%
Characteristics Standard catalogue sizes	New LCS Copper Foam 5mm thick x 50mm x 64mm 10mm thick x 50mm x 64mm 4mm thick x 23mm diameter (other sizes on request)	Other Copper Foams available from Goodfellow 6.35mm thick x 150mm x 150mm (other sizes on request)
Characteristics Standard cladding	New LCS Copper Foam None	Other Copper Foams available from Goodfellow None
Characteristics Cladding thickness	New LCS Copper Foam Not applicable	Other Copper Foams available from Goodfellow Not applicable
Characteristics Standard cell size	New LCS Copper Foam 300 to 600µm 10 to 20 pores/cm (25 to 50 PPI)	Other Copper Foams available from Goodfellow 4 to 16 pores/cm (10 to 40 PPI)
Characteristics Other available cell sizes	New LCS Copper Foam 200 to 300µm, 630 to 1000µm	Other Copper Foams available from Goodfellow 2 pores/cm (5 PPI)
Characteristics Foam topology	New LCS Copper Foam Randomly distributed, interconnected pores	Other Copper Foams available from Goodfellow Randomly distributed, interconnected pores
Characteristics Relative density	New LCS Copper Foam 37%	Other Copper Foams available from Goodfellow 5 to 12%
Characteristics Nominal density	New LCS Copper Foam 3.32 g/cm³	Other Copper Foams available from Goodfellow 0.45 to 1.08 g/cm³
Characteristics Relative surface area	New LCS Copper Foam 24 mm²/mm³ (24000 m²/m³)	Other Copper Foams available from Goodfellow 200 to 2000m²/m³
Characteristics Maximum service temperature	New LCS Copper Foam 1080°C	Other Copper Foams available from Goodfellow 1080°C
Characteristics Compression strength	New LCS Copper Foam -	Other Copper Foams available from Goodfellow 0.903 MPa‡
Characteristics Tensile strength	New LCS Copper Foam 13 MPa	Other Copper Foams available from Goodfellow 6.9 MPa‡
Characteristics Modulus of elasticity	New LCS Copper Foam 22 GPa (tension)	Other Copper Foams available from Goodfellow 736 MPa‡
Characteristics Shear modulus	New LCS Copper Foam 9 GPa	Other Copper Foams available from Goodfellow 282 MPa‡
Characteristics Specific heat	New LCS Copper Foam 385 J/kg.K	Other Copper Foams available from Goodfellow 385 J/kg.K
Characteristics Bulk thermal conductivity	New LCS Copper Foam 7 to 43 W.m^-1.K^-1	Other Copper Foams available from Goodfellow 10.1 W.m^-1.K^-1‡
Characteristics Coefficient of thermal expansion	New LCS Copper Foam 16.5 µm.m^-1.K^-1	Other Copper Foams available from Goodfellow 16.5 µm.m^-1.K^-1‡ (20 to 100°C)
Characteristics Bulk resistivity	New LCS Copper Foam 2.8 * 10^-8 to 1.66 * 10^-7ohm-cm (at 20°C)	Other Copper Foams available from Goodfellow 6.5 * 10^-5 ohm-cm ‡

‡ at 8% nominal density

Uses

Liquid cooling
Air cooling
Heat exchangers
Board level electronics cooling
Power electronics

as well as

EMI shielding
Impact absorption
Acoustic dampening
Supporting catalytic reactions
Filtration

Production process

Pure copper powder is mixed with a carbonate powder and compacted. It is then sintered, heating it enough to make the particles of copper powder bond to each other without melting. This forms a matrix of copper ligaments, in between which is the carbonate powder. After cooling the carbonate is either dissolved away in water and recycled or decomposed using heat.

The carbonate is chosen to have a decomposition temperature higher than the melting point of copper, and can be one or more of a range of widely available carbonates such as calcium, magnesium, potassium or sodium carbonate. The precise choice of carbonate is influenced by the melting point, the size of the particles and their solubility in liquids.

Copper particles are mixed with carbonate particles
The mixture is compacted to shape
The mixture is heated to a temperature of approximately 1000°C, causing the copper to bond.
The carbonate particles are thermally decomposed or dissolved away. The product is then finished and passed to Quality Control.

Please click here to see catalogue sizes and availability.

Preferenze

Product Summary of Lost Carbonate Sintering (LCS) Porous Copper Foam

What is LCS Copper foam?

New LCS Copper Foam

Traditional Copper Foams from Goodfellow

Properties

Uses

Production process

Goodfellow

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Goodfellow Cambridge Ltd.