Different fluorination processes with ammonium bifluoride and their effect on fluorozirconate glasses

Journal Article · Thu Jun 01 00:00:00 EDT 1989 · Materials Research Bulletin; (USA)

DOI:https://doi.org/10.1016/0025-5408(89)90081-0· OSTI ID:5265464

Braglia, M; Ferraris, M; Greggo, G; Parisi, G; Taiariol, F ^[1]

---

1. CSELT - Via G. Reiss Romoli, 274 - 10148 Torino (IT)

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.

• OSTI ID: 5265464
• Journal Information: Materials Research Bulletin; (USA), Vol. 24:6; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 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
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies
400201 - Chemical & Physicochemical Properties
360204 - Ceramics
Cermets
& Refractories- Physical Properties