Icon that, when clicked, will open a new window showing a Thermal Conductivity Plot or possibly a window showing that a representative plot has not yet been completed but will be coming soon
Icon that, when clicked, will open a new window showing a Specific Heat Plot or possibly a window showing that a representative plot has not yet been completed but will be coming soon
Cryogenic technologies group
Material Properties: OFHC Copper (UNS C10100/C10200)
 Data Available:
 Thermal Conductivity

 

 
Thermal Conductivity

RRR = 50
Thermal Conductivity

RRR = 100
Thermal Conductivity

RRR = 150
Thermal Conductivity

RRR = 300
Thermal Conductivity

RRR = 500
UNITS W/(m-K) W/(m-K) W/(m-K) W/(m-K) W/(m-K)
a 1.8743 2.2154 2.3797 1.357 2.8075
b -0.41538 -0.47461 -0.4918 0.3981 -0.54074
c -0.6018 -0.88068 -0.98615 2.669 -1.2777
d 0.13294 0.13871 0.13942 -0.1346 0.15362
e 0.26426 0.29505 0.30475 -0.6683 0.36444
f -0.0219 -0.02043 -0.019713 0.01342 -0.02105
g -0.051276 -0.04831 -0.046897 0.05773 -0.051727
h 0.0014871 0.001281 0.0011969 0.0002147 0.0012226
i 0.003723 0.003207 0.0029988 0 0.0030964
low range
4K 4K 4K 4K 4K
high range
300K 300K 300K 300K 300K
curve fit % error relative to data
         
For Thermal Conductivity only:
Curve fit equation of the form:

log10 k = (a + cT 0.5 + eT + gT 1.5 + iT 2)/(1 + bT 0.5 + dT + f T 1.5 + hT 2)

solves as:

k = 10 ( a + cT 0.5 + eT + g T 1.5 + iT 2 ) / ( 1+ bT 0.5 + d T + f T 1.5 + hT 2 )

 
Specific Heat
Expansion Coefficient
UNITS J/(kg-K)
10-6 * (1/K)
a -1.91844 -17.9081289
b -0.15973 67.131914
c 8.61013 -118.809316
d -18.996 109.9845997
e 21.9661 -53.8696089
f -12.7328 13.30247491
g 3.54322 -1,30843441
h -0.3797 ---
i 0 ---
data range
4-300 4-300
equation range
4-300 4-300
curve fit % error relative to data
   
For properties: specific heat and expansion coefficient curve fit equation of the form:
Curve fit equation of the form:
log10 y = a+b(log10T) + c(log10T) 2 + d(log10T) 3 + e(log10T) 4 + f(log10T) 5 + g(log10T) 6 + h(log10T) 7 + i(log10T) 8


Solves as:
y = 10 a+b(log10T) + c(log10T) 2 + d(log10T) 3 + e(log10T) 4 + f(log10T) 5 + g(log10T) 6 + h(log10T) 7 + i(log10T) 8

Where: Coefficients a - i are summarized in the appropriate table and T is the temperature in K (x-axis), and y is the property to solve for.

revised 02/03/2010

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