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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 * 10-7 ohm-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.

    1. Copper particles are mixed with carbonate particles

      Copper Foam Stage 1
    2. The mixture is compacted to shape

      Copper Foam Stage 2
    3. The mixture is heated to a temperature of approximately 1000°C, causing the copper to bond.

      Copper Foam Stage 3
    4. The carbonate particles are thermally decomposed or dissolved away. The product is then finished and passed to Quality Control.

      Copper Foam Stage 4

    Please click here to see catalogue sizes and availability.

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    To place a phone order:
    US:1 800 821 2870
    UK: 0800 731 4653

    Customer Support: info@goodfellow.com

    Thank you
    The Goodfellow Team