ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The present investigation reveals the development of flaws and a considerable change in the structural state of a commercial glass, due to severe tempering in different liquid media. It is shown that during severe tempering in silicone liquids, molten metals and alloys, strengthening takes place simultaneously with destructive degradation of the surface layers of the glass which depends on the cooling rate and the composition of the glass. Increase in cooling rate causes the compressive stresses near the glass surface to increase but at the same time the temperature gradient gives rise to new microflaws and to the growth of small flaws into large ones. The modification of the structural state of the glass surface affects the mechanical properties of glass. Surface microflaws, degradation of glass structure, and temporary stresses are shown as contributory factors to the loss in strength of severely tempered glass.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00550208
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