In-Plane Thermal Diffusivity & Conductivity Test

To measure the in-plane thermal diffusivity and conductivity of thermal graphite and other anisotropic materials, based on the Angstrom Method. For this test, we use a LongWin LW-9614 measurement apparatus.

Thermal Diffusivity

 

 

 

 

 

 

 

 
 

Experimental Items:

  • Graphite Materials

Tests:

  • Thermal Diffusivity
  • Thermal Conductivity
  • Sinusoidal Temperature Waveform
  • Correlation of Amplitude and Phase Difference

Example:

  1. Sinusoidal Temperature Waveform
  2. Specimens and the Clamping Mechanism for Temperature Sensors
    • Distance between the two sensors from 10 to 100 mm
    • Specimen Dimension:
      • Length: > 300 mm
      • Width: 20 ~ 30 mm
      • Thickness: 0.02 ~ 0.6 mm
    • Tension stress for specimens: 100 ~ 1000 gf/mm²
  3. Software for DAQ Analysis
    1. Calculate the correlation of amplitudes and phase differences
    2. Get the value of thermal diffusivity
    3. Specific heat and density of the specimen can be manually keyed-in for parameters acquiring a corresponding thermal conductivity
  4. Over Dimension: 90 (W) x 65 (D) x 164 (H) cm

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