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GRAPHITE & QUARTZ PRODUCTS
 
GRAPHITE & QUARTZ PRODUCTS  
   HIGH PURITY GRAPHITE MATERIAL
  • Applications:
  • Heat Exchanger, Chucks, Crucible Holder, Crucible, electrode, ect..
    Item Unit Properties
    Density Min. g/cm3 1.80
    Average Grain Size   micron 25
    Ash  Max. ppm 50
    Specific Electrical Resistivity Max. Micron ohm.m 11 - 13
    Shore Hardness Min.   50
    Flexural strength Min. Mpa 37
    Compressive Strength Min. MPa 80
    C.T.E. Max. X 10-6/OC 4.5
    Remarks: Other branded materials can be negotiated based on customer's request.
       CARBON/CARBON COMPOSITE MATERIAL
  • Applications:
  • Resistors, U-Heater, Heat Insulation Shield/Soleplate, Heat Preservation Cylinder, etc..
    Remarks: Other branded materials can be negotiated based on customer's request
    Item Unit Heater Sheild Insulation Plate
    Ash Content Max. ppm 30 30 30
    Bulk Density Min. g/cm3 1.7 1.3 0.15-0.25
    Specific Resistivity (1500 oC) Max. Micron ohm.m 31 / /
    Tensile Strength Mpa 56 max. 32 min. /
    Compressive strength  Min. Mpa 120 50 /
    Thermal Conductivity  Max. W/m.k / 6.9 0.5
    C.T.E. (1100 oC) X10-6/oC 2.4 2.4 2.4
       HIGH PURITY OPAQUE QUARTZ CRUCIBLE with Inner Surface Coated by High Pure Synthetic Quartz - For growth of Mono-Crystalline Silicon Ingot
    Position Typical Chemical Elements Composition of Impurities  (Unit: ppm)
    Al Fe Ca Mg Ti Cu K Na Li B OH (Max.)
    Quartz body 14.0 0.23 0.4 0.05 0.6 0.05 0.6 0.9 0.9 0.08 50
    Coating 8.0 0.23 0.4 0.05 0.6 0.04 0.35 0.9 0.15 0.04 50
    Available Sizes: Dia. 8" - 24"
       CLEAR FUSED QUARTZ CRUCIBLE - For growth of Compound Semiconductor
    Type Typical Chemical Elements Composition of Impurities  (Unit: ppm)
    Al Fe Ca Cu K Na Li B OH ( Max.)
    DHS 20 1 1.5 0.1 3 3 3 0.3 50
    DHS - A 15 0.3 0.6 0.05 0.7 1.0 0.7 0.1 max. 50
    DHS - B 8 0.2 0.6 0.02 0.3 0.9 0.2 0.05 max. 50
    Available Sizes: Dia. 3" - 12"
       FUSED SILICA CRUCIBLE (or SINTERED QUARTZ CRUCIBLE) - For growth of Photovoltaic Poly-Crystalline Silicon Ingot
    Typical Chemical Elements Composition of Impurities (Unit: ppm)
    Physical Properties
    Item Unit Properties
    Bulk Density Min. g/cm3 1.9
    Apparent Porosity Max. % 14
    Bending Strength Min. Mpa 25
    Compressive strength (room temp.) Min. Mpa 60
    Thermal Conductivity (room temp.-1100 oC)   W/m. oC 0.60 - 1.1
    C.T.E. (room temp.-1100 oC) Max. X10-6/ oC 0.7
    Available Sizes: As customer's demand (max. size 11001100550mm)
    Al2O3 Fe2O3 CaO MgO TiO2 CuO K2O Na2O Li2O B2O3 Zr2O3 Mn2O3 P2O5 BaO SiO2
    748 137 46 22 70 0.1 68 15 2.5 0.1 37 2.6 15.6 12 99.7% min.
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