MICRODIFFRACTION OF THE SYNCHROTRON-RADIA TION - IDENTIFICATION OF NON METALLIC PHASES IN IRON AND STEEL

We present a new X-ray microdiffraction method coupled to microfluores cence for phase identification of a sample of 10 mu m in size. This me thod uses the high brilliance of synchrotron radiation, which allows a n X-ray focus of a few square micrometers. Thus, diffraction patterns of 25-mu m inclusions are obtained. We present in this paper an exampl e of application of this method, i.e. the identification of non metall ic inclusions in an archaeological iron ingot.