M. Schallehn, M. Winterer, T.E. Weirich, U. Keiderling and H. Hahn
Nanocrystalline alumina particles coated with polyethylene are prepared by a two-step chemical vapor synthesis (CVS) process using a hot-wall reactor to synthesize a nanocrystalline alumina core, followed by polymer coating in an RF plasma reactor. The particle radius is 4 nm with a ceramic core radius of 2.5 nm and a coating thickness of 1.5 nm. The success of the preparation is shown by the combined characterization results of FTIR, XRD, BET, SANS, and HRTEM (Figure).