Radial cracks generated in heavy-metal fluoride glass by Vickers indentation were found to decrease in length as a function of time when exposed to humid environments in the temperature range 22-80 degrees C. Inspection by optical and electron microscopy indicated that the cracks appeared to be closing, leaving little evidence of the original crack aperture.
Origin
Rutgers University
Journal Title
J Am Ceram Soc 1989 72 3 474-477
Sector
Special Glass
Class
S 252