Eloisa Bentivegna
Big Data 2022
The out-of-plane thermal expansion coefficient α⊥ of biphenyldianhydride-phenylenediamine (BPDA-PDA) polyimide thin film between 20 and 400°C has been measured using a laser spot scanning interferometer. The α⊥ varies from 100 ppm/°C at 20°C to 400 ppm/°C at 400°C. As the result of highly anisotropic microstructure, the α⊥ is much larger than the in-plane thermal expansion coefficient α∥ and increases dramatically when the temperature exceeds the glass transition temperature (≈320°C). © 1993 The Minerals, Metals & Materials Society.
Eloisa Bentivegna
Big Data 2022
D.D. Awschalom, J.-M. Halbout
Journal of Magnetism and Magnetic Materials
Frank R. Libsch, Takatoshi Tsujimura
Active Matrix Liquid Crystal Displays Technology and Applications 1997
R. Ghez, J.S. Lew
Journal of Crystal Growth