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Author Ferraris, M. ♦ Greggo, G. ♦ Parisi, G. ♦ Taiariol, F.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ AMMONIUM FLUORIDES ♦ CHEMICAL REACTION KINETICS ♦ METALLIC GLASSES ♦ PHASE STUDIES ♦ ZIRCONIUM OXIDES ♦ FLUORINATION ♦ HEAT TREATMENTS ♦ INFRARED SPECTRA ♦ MIXTURES ♦ X-RAY DIFFRACTION ♦ AMMONIUM COMPOUNDS ♦ CHALCOGENIDES ♦ CHEMICAL REACTIONS ♦ COHERENT SCATTERING ♦ DIFFRACTION ♦ DISPERSIONS ♦ FLUORIDES ♦ FLUORINE COMPOUNDS ♦ HALIDES ♦ HALOGEN COMPOUNDS ♦ HALOGENATION ♦ KINETICS ♦ OXIDES ♦ OXYGEN COMPOUNDS ♦ REACTION KINETICS ♦ SCATTERING ♦ SPECTRA ♦ TRANSITION ELEMENT COMPOUNDS ♦ ZIRCONIUM COMPOUNDS ♦ Ceramics, Cermets, & Refractories- Structure & Phase Studies ♦ Chemical & Physicochemical Properties ♦ Ceramics, Cermets, & Refractories- Physical Properties
Abstract The authors present a study of each step of ZrO/sub 2/ fluorination process by ammonium bifluoride, in order to identify thermal conditions for oxyfluorides formation and to avoid their incorporation into fluoride glasses. To this purpose, DSC, XRD and IR analyses have been carried out on different thermally treated mixtures of ZrO/sub 2/ and NH/sub 4/F x HF. IR spectroscopy on starting materials and different heated mixtures have been carried out in order to control step-by-step the formation of oxyfluorides during the heating. XRD reveals the presence of oxyfluorides species in addition to expected ammonium-zirconium-fluoride compounds.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 1989-06-01
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 24
Issue Number 6


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