Losses of components of fluoride-phosphate glasses in the course of synthesis

Journal Article · Wed Apr 20 00:00:00 EDT 1988 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6336522

Galant, V E; Urusovskaya, L N

The purpose of this work was to study component losses during synthesis of fluoride-phosphate glasses in the system Al(PO/sub 3/)/sub 3/-BaF/sub 2/-AlF/sub 3/-MeF/sub x/ in relation to the nature and concentration of the added fluoride. The composition of the original glass (mole %) was: Al(PO/sub 3/)/sub 3/ 22.80, BaF/sub 2/ 66.66, AlF/sub 3/ 10.54. From 1 to 35% of MeF (Me = Li, Na, K, Rb, Cs, Tl), and from 5 to 30 mole % of MeF/sub 2/ (Me = Mg, Ca, Sr, Zn, Cd, Ba), and from 5 to 35 mole % of MeF/sub 3/ (Me = Al, Ga, In, Sc, Y, La) was added to the original glass. A calculation method based on comparison of the glass compositions by synthesis and analysis was used for determination of component losses by volatilization during the melting. The authors dual investigation of the composition of the products of volatilization of the glass-forming system Al(PO/sub 3/)/sub 3/-BaF/sub 2/-AlF/sub 3/-MeF/sub x/ demonstrates that the principal volatilization products are the compounds POF/sub 3/, PF/sub 3/, and MeF/sub x/. Moreover, the volatile phase may contain PF/sub 3/, AlF/sub 3/, BaF/sub 2/, P/sub 2/O/sub 5/, and in the case of the system with TlF the complex compound TlSlF/sub 4/ may be formed.

• OSTI ID: 6336522
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Vol. 60:11; Other Information: Translated from Zh. Prikl. Khim.; 60: No. 11, 2438-2447(Nov 1987)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PHOSPHATE GLASS
SYNTHESIS
RAW MATERIALS
LOSSES
ALUMINIUM FLUORIDES
ALUMINIUM PHOSPHATES
BARIUM FLUORIDES
CADMIUM FLUORIDES
CALCIUM FLUORIDES
EVAPORATION
GALLIUM FLUORIDES
INDIUM FLUORIDES
LANTHANUM FLUORIDES
MAGNESIUM FLUORIDES
MASS SPECTRA
MELTING
SCANDIUM FLUORIDES
STRONTIUM FLUORIDES
VAPORS
VOLATILITY
YTTRIUM FLUORIDES
ZINC FLUORIDES
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
BARIUM COMPOUNDS
CADMIUM COMPOUNDS
CADMIUM HALIDES
CALCIUM COMPOUNDS
CALCIUM HALIDES
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
GALLIUM COMPOUNDS
GASES
GLASS
HALIDES
HALOGEN COMPOUNDS
INDIUM COMPOUNDS
LANTHANUM COMPOUNDS
MAGNESIUM COMPOUNDS
MATERIALS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHOSPHATES
PHOSPHORUS COMPOUNDS
RARE EARTH COMPOUNDS
SCANDIUM COMPOUNDS
SPECTRA
STRONTIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
ZINC COMPOUNDS
ZINC HALIDES
360601* - Other Materials- Preparation & Manufacture
360602 - Other Materials- Structure & Phase Studies