# Material Properties: G-10 CR (Fiberglass Epoxy)

### Data Available:

• Thermal Conductivity, Normal Direction
• Thermal Conductivity, Warp Direction
• Specific Heat (No plot available)
• Linear expansion
• Linear expansion
 Thermal Conductivity (Normal Direction) Thermal Conductivity (Warp Direction) Specific Heat UNITS W/(m-K) W/(m-K) J/(kg•K) a -4.1236 -2.64827 -2.4083 b 13.788 8.80228 7.6006 c -26.068 -24.8998 -8.2982 d 26.272 41.1625 7.3301 e -14.663 -39.8754 -4.2386 f 4.4954 23.1778 1.4294 g -0.6905 -7.95635 -0.24396 h 0.0397 1.48806 0.015236 i 0 -0.11701 0 data range 4-300 4-300 4-300 equation range 10-300 12-300 4-300 curve fit % error relative to data 5 5 2
 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.

See References

 Linear Expansion (normal direction) Linear Expansion (warp direction) .UNITS [(L-L293)/L293] x 105 unitless, eg. m/m [(L-L293)/L293] x 105 unitless, eg. m/m a -7.198E2 -2.469E2 b 4.455E-1 2.064E-1 c 7.505E-3 3.072E-3 d -2.219E-6 -3.226E-6 e 0 0 Tlow (K) NA NA f> NA NA data range (K) 4-300 4-300 equation range (K) 10-300 12-300 curve fit % error relative to data 1.5 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.

See References