Classic Symmetrical Temper Stresses Three Photomicrographs of Poor Temper Fracture Patterns There has been some concern about glass oven wear made from tempered soda lime glass exploding while in use. A Glass failure analysis expert witness performed fractography on a thick glass jar that had been “tempered”. Because this is a prototype piece, […]
Tempered Glass Expert Describes Failure Origin for Tempered Glass
Glass failure analysis expert demonstrates how to locate the origin of a tempered glass failure. Glass failure analysis of a tempered glass piece is difficult (if not impossible) because tempered glass fracture results in many small pieces. In many cases the glass failure falls apart and there is no pattern left to trace […]
Tempered Glass Expert Shows Multple Views of Nickel Sulfide Particle
The result of a failure analysis, a glass expert presents several views of a 180µ diameter origin (nickel sulfide particle) of a failed tempered glass door. The upper left photomicrograph is taken with a low power optical microscope and it includes the NiS particle and the initial Wallner lines. Upper right and lower left are […]
Glass Failure Analysis of Laminated and Tempered GLass
Glass failure analysis was performed by a failure analysis expert on a large laminated window of which one layer was tempered glass. The tempered half of the lamination failed. The other half of the window held the system together, and this allowed a failure analysis to be performed. The upper left photo is an […]
Failure Analysis Expert shows Nickel Sulfide Particle
Failure analysis expert observed a nickel sulfide particle using Nomarski optics. The various colors show different elevations of the surface around the particle. This particle was at the origin of a failed tempered glass door. This is an interesting result of a glass failure analysis performed on the door. […]
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