Title: SEM, EDS and WAXD microstructural characterisation of a new enamel used as a protective and thermal barrier

Authors: I. Pencea, V. Manoliu, F. Vasiliu, M. Britchi, M. Olteanu

Addresses: Science and Engineering Materials Faculty, ''Politehnica'' University, Spl. Independentei 313, Sector 6, Bucharest 77208, Romania. Research Institute for Aviation Materials IAM, Bucharest, Romania. Institute for Physics and Technology of Material IPTM, Bucharest, Romania. Institute of Physical Chemistry, ''I. G. Murgulescu'' of Romanian Academy, Spl. Independentei 202, Sector 6, Bucharest 77208, Romania. Institute of Physical Chemistry, ''I. G. Murgulescu'' of Romanian Academy, Spl. Independentei 202, Sector 6, Bucharest 77208, Romania

Abstract: A new enamel has been developed to be used as a protective and thermal barrier coating of aircraft engine components subjected to thermal shocks and corrosion. This enamel is based upon the oxide system SiO₂-BaO CaO-Cr₂O₃ and can stand about 1100°C without losing its adherence and main protective characteristics. The microstructural element concentration and crystalline phases have been studied using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and wide angle X-ray diffraction (WAXD) in order to offer a better understanding of the enamel characteristics.

Keywords: enamel coating; microstructure; element distribution; SEM; EDS; WAXD.

DOI: 10.1504/IJMPT.2001.001287

International Journal of Materials and Product Technology, 2001 Vol.16 No.6/7, pp.658-668

Published online: 01 Jul 2003 *

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