Low-Temperature Crack Closure In Fluoride Glass

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.

Author
R L Lehman, R E Hill, G H Sigel
Origin
Rutgers University
Journal Title
J Am Ceram Soc 1989 72 3 474-477
Sector
Special Glass
Class
S 252

Request article (free for British Glass members)

Low-Temperature Crack Closure In Fluoride Glass
J Am Ceram Soc 1989 72 3 474-477
S 252
Are you a member?
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
2 + 5 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.