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Water Corrosion Behavior of Fluoroaluminate Glass
Author(s) -
Dai Yisheng,
Takahashi Katsuo,
Yamaguchi Ichirou
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb08380.x
Subject(s) - corrosion , dissolution , materials science , transmittance , fluoride , leaching (pedology) , composite material , absorption (acoustics) , metallurgy , mineralogy , chemical engineering , inorganic chemistry , chemistry , soil water , environmental science , optoelectronics , soil science , engineering
The water corrosion behavior of a typical fluoroaluminate glass was studied in both plate and powder form. The infrared spectra of the corroded plate sample exhibited an overall transmittance decrease but little absorption at 3450 cm –1 . Transmittance in the visible region was substantially reduced with an increase of haziness. Microscopic observation revealed a uniform corrosion of the glass surface without any detectable cracks. Dissolution of the glass powder in water resulted in a slight pH increase of the solution. The leaching was congruent and the dynamic dissolution process monitored by solution conductivity followed a logarithmic correlation with time. The corrosion behavior was greatly different from that of fluoride glasses in other systems.