Title of article :
VAPOR PHASE DEPOSITION OF FOAMING BORON OXYFLUORIDE VITREOUS MATERIALS
Author/Authors :
Boussard-Plédel، نويسنده , , Catherine and Le Floch، نويسنده , , Marie and Fonteneau، نويسنده , , Gilles and Lucas، نويسنده , , Jacques، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1997
Abstract :
A new class of polymeric glasses belonging to the B-O-F system has been synthesized by reaction between B2O3 and BF3 gas in a sealed silica tube being in a temperature gradient condition. The glass formation mechanism which involves a vapor phase transport indicates that the F concentration in the glass varies with the deposit temperature. The glass transition temperatures Tg are in the range −15 to 120°C and depend on the F/B ratio. A foaming phenomenon, due to BF3 bubbles nucleation, is observed when the “BOF” glasses are maintained above Tg. © 1997 Elsevier Science Ltd
Keywords :
A. Oxides , B. vapor deposition , Nuclear magnetic resonance , C. , A. Glasses , A. Fluorides
Journal title :
Materials Research Bulletin
Journal title :
Materials Research Bulletin
