Thermal conductivity of AlN/PE composite substrate

AlN/PE composite substrate was made by mould pressing. The influences of AlN percentage and morphology on thermal conductivity were studied and the model for predicting thermal conductivity was discussed too. Results demonstrate that with the increase of AlN percentage, the thermal conductivity remains the same initially, but increases sharply after that, and then slows down in rate. The AlN whisker increases thermal conductivity most efficiently, followed by AlN fibers, and AlN powder is of less efficiency.