Binary systems of rare earth oxysulfides |
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| Authors: | Markku Leskelä Lauri Niinistö Hervé Dexpert Yves Charreire |
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| Affiliation: | Department of Chemistry, Helsinki University of Technology, Otaniemi, SF-02150 Espoo 15, Finland;ER 210 and 211, C.N.R.S., 1 Place A. Briand, F-92190 Meudon, France |
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| Abstract: | Pseudobinary rare earth oxysulfide systems were studied by X-ray diffraction, high resolution electron microscopy and fluorescence spectroscopy with Eu3+ as a probe. The different methods gave consistent results for the composition range and segregation phenomena in the two-phase region of the (LaO)2S ? (LnO)2S system (Ln = Y or Lu). The preparative method appeared to be of some importance. |
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