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
 Linear Expansion

 

 

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
 -6.8125E2 -1.945E2 -9.4346E2
b
 2.1101E0 7.949E-1 2.8927E0
c
 2.4019E-3 -1.234E-3 3.1370E-3
d
 -9.9676E-6 4.709E-6 -1.0879E-5
e
 1.4507E-8 -6.764E-9 1.3312E-8
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
 1 3 2
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                                 Return to Material Properties Index page