Cu general by HC1112140287

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									Genera Properties and Features of Copper
(동의 일반적인 성질)


* Physical Properties of Copper.

                    Property                       Value                Units           Value            Units


Atomic number                                                  29

Atomic weight                                               63.54

Lattice structure                            face centered cubic(fcc)

Density

IEC standrad value(1913)                                     8.89               g/cm3           0.321          lb/in3

Typical value at 20°C                                        8.92               g/cm3           0.322          lb/in3

at 1083°C (solid)                                            8.32               g/cm3             0.3          lb/in3

at 1083 (liquid)                                             7.99               g/cm3           0.288          lb/in3

Melting point                                               1083                  °C            1981              °F

Boiling point                                               2595                  °C            4703              °F

Linear cofficient of thermal expansion at:

-253°C, -423°F                                          0.3 x 10-6                /°C    0.17 x 10-6             /°F

-183°C, -297°F                                          9.5 x 10-6                /°C    5.28 x 10-6             /°F

-191°C to 16°C,-312-61°F                               14.1 x 10-6                /°C     7.83 x 10              /°F

25°C to 100°C,77-212 °F                                16.8 x 10-6                /°C    9.33 x 10-6             /°F

20°C to 200°C,68-392 °F                               17.3 x 10-6                 /°C    9.61 x 10-6             /°F

20°C to 300°C,68-572 °F                                17.7 x 10-6                /°C    9.83 x 10-6             /°F

Specific heat (thermal capacity) at:

-253°C, -425°F                                              0.013               J/g°C       0.0031         Btu/lb°F

-150°C, -238°F                                              0.282               J/g°C       0.0674         Btu/lb°F

-50°C, -58°F                                                0.361               J/g°C       0.0862         Btu/lb°F

20°C, 68°F                                                  0.386               J/g°C       0.0921         Btu/lb°F

100°C, 212°F                                                0.393               J/g°C       0.0939         Btu/lb°F

200°C, 392°F                                                0.403               J/g°C       0.0963         Btu/lb°F

Thermal conductivity at:

-253°C, -425 °F                                             12.98       W-cm/cm2·°C              750    Btu/ft/ft2h°F

-200°C, -328 °F                                              5.74       W-cm/cm2·°C              330    Btu/ft/ft2h°F
-183°C, -297 °F                                                       4.73      W-cm/cm2·°C                 270     Btu/ft/ft2h°F

-100°C, -148 °F                                                       4.35      W-cm/cm2·°C                 252     Btu/ft/ft2h°F

20°C, 68 °F                                                           3.94      W-cm/cm2·°C                 227     Btu/ft/ft2h°F

100°C, 212 °F                                                         3.85      W-cm/cm2·°C                 223     Btu/ft/ft2h°F

200°C, 392 °F                                                         3.81      W-cm/cm2·°C                 220     Btu/ft/ft2h°F

300°C, 572 °F                                                         3.77      W-cm/cm2·°C                 217     Btu/ft/ft2h°F

Electrical conductivity (volume) at:

20°C, 68 °F, (annealed)                                        58.0-58.9     MS/m (m/Ωmm2)          100.0-101.5         % IACS

20°C, 68 °F, (fully cold worked)                                      56.3   MS/m (m/Ω·mm2)                   97        % IACS

Electrical resistivity (volume) at:

20°C, 68 °F, (annealed)                                0.017241-0.0170              Ω·mm2/m         10.371-10.2     Ω(circmil/ft)

20°C, 68 °F, (annealed)                                      1.7241-1.70              µΩ·cm        0.6788-0.669        micrΩ-in

20°C, 68 °F, (fully cold worked)                                    0.0178          Ω·mm2/m                10.7     Ω(circmil/ft)

20°C, 68 °F, (fully cold worked)                                      1.78            µΩ·cm                   0.7         µΩ-in

Electrical resistivity (mass) at 20°C, 68 °F, (annealed)

Mandatory maximum                                                  0.15328            Ω·g/m2              875.4       Ω·lb/mile2

Temperature coefficient of electrical
resistance (a) at 20°C °F: Annealed copper of
                                                                   0.00393               /°C            0.00218              /°F
100% IACS (applicable from -100°C to
200°C,212°F to 392°F)

Fully cold worked copper of 97%IACS
                                                                   0.00381               /°C            0.00238              /°F
(applicable from 0°C to 100°C, 68-212 °F)

Modulus of elasticity (tension) at 20°C:, 68 °F
Annealed                                                           118,000              MPa            17 x 103              KSi
                                                                                                                3
Cold worked                                            118,000-132,000                  MPa          17-19 x 10              KSi
Modulus of rigidity (torsion) at 20°C, 68 °F
Annealed                                                            44,000              Mpa            6.4 x 103             KSi
                                                                                                                3
Cold worked                                                44,000-49,000                MPa          6.4-7 x 10              KSi
Latent heat of fusion                                                 205                    J/g
Electro chemical equivalent for:
Cu++                                                                 0.329             Mg/C
   +
Cu                                                                   0.659             Mg/C
Normal electrode potential (hydrogen electrode) for:
Cu++                                                                -0.344                    V
   +
Cu                                                                   -0.47                    V




* Physical and Mechanical Properties of Electrical Grades of Copper and Aluminum
(Type 1350) Compared.

                                                                               Copper              Aluminum
                    Property                               Units
                                                                                (High                (1350)
                                                                             Conductivity)
Electrical conductivity
                                                                 %IACS              101             61
(annealed)
Electrical resistivity
                                                                  µΩ-cm             1.72          2.83
(annealed)
Thermal conductivity
                                                                 W/m·K              397            230
at 20°C
Coefficient of                                                        /°C      17 x 10-6     23 x 10-6
expansion                                                             /°F      9.4 x 10-6   12.8 x 10-6
Tensile strength                                                     KSi       29.0-36.2       7.2-8.7
(annealed)                                                          MPa         200-250         50-60
Tensile strength                                                     KSi       37.7-43.5    12.3-14.5
(half-hard)                                                         MPa         260-300        85-100
                                                                     KSi       72.5-79.8       2.9-4.3
0.2% yield strength (annealed)
                                                                    MPa           50-55         20-30
                                                                     KSi       24.6-29.0       8.7-9.4
0.2% yield strength (half-hard)
                                                                    MPa         170-200         60-65
                                                                     KSi       16.8-18.8          10.1
Elastic modulus
                                                                    MPa         116-130             70
                                                                     KSi               9          5.07
Fatigue Strength (annealed)
                                                                    MPa               62            35
                                                                     KSi            16.9          7.25
Fatigue Strength (half hard)
                                                                    MPa             117             50
                                                                 Btu/lb0F         0.092          0.215
Specific heat
                                                                  J/kg·K            385            900
                                                                   g/cm3            8.91           2.7
Density
                                                                    lb/in3        0.322        0.0975
                                                                          °C       1083            660
Melting Point
                                                                          °F       1981          1220



* Crystallographic Features of Copper
Type of Structure                                                     A1
                                                             5
Space Group                                               Oh - Fm3m
Crystal Structure                               face-centered cubic
Number of Atoms per Unit Cell                                              4
                                                                    -10
Lattice Parameters at 293 K                        3.6147 x 10            m
Distance of Closest Atomic Approach
                                                     2.556 x 10-10m
(Burgers vector) at 293
Goldschmidt Atomic Radii
                                                         1.28 x 10-10m
(12-fold coordination)
Atomic Volume                                            1.182 10-29m3
source:
1. Properties of Copper and Copper Alloys at Cryogenic
Temperatures, N.J. Simon, E.S. Drexler, and R.P. Reed
2. CDA(Copper Development Association)

								
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