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 Linear Expansion 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: Beechwood-Phenolic
 Data Available:
 Thermal Conductivity

 

 

Thermal Conductivity

(cross-laminate [0/90], grain direction)

Thermal Conductivity

(cross-laminate [0/90], flatwise)
UNITS W/(m-K) W/(m-K)
a -1375.11 1035.33
b 3740.69 -2191.85
c -4238.465 1470.505
d 2559.333 39.845
e -868.6067 -541.9035
f 157.1018 289.844
g -11.82957 -65.2253
h 0 5.59956
i 0 0
data range
92-300 92-300
equation range
80-300 75-300
curve fit % error relative to data 1 1.5
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.

Link to References

Linear Expansion (unidirectional, flatwise) Linear Expansion (unidirectional, grain direction) Linear Expansion
(cross-laminate [0/90], grain direction)
.UNITS
[(L-L293)/L293] x 10 -5 unitless, eg. m/m [(L-L293)/L293] x 10 -5 unitless, eg. m/m [(L-L293)/L293] x 10 -5 unitless, eg. m/m
a
-683.9 -189.138 -944.081
b
2.18264 0.646759 2.909782
c
0.001701 0.000202 0.002971
d
-7.1E-06 -1.2E-06 -1E-05
e
1.04E-8 1.85e-09 1.23E-08
Tlow (K)
NA NA NA
f>
NA NA NA
data range (K)
77-293 77-293 77-293
equation range (K)
77-293 77-270 77-293
curve fit % error relative to data
0.57 0.54 0.89
equation of the form:
y = a + bT + cT 2 + dT 3 + eT 4
   >T > Tlow
y = f 
   T < Tlow
solves as expected: Where: Coefficients a-e are summarized in the appropriate table and T is the temperature in K (x-axis), and y is the property to solve for.

link to references                                 Icon used as link to return to Material Properties Index page