California glass expert was asked to analyze a window defect that appears as a streak in the window. The glass failure analysis showed that the streaks in the window were strings of bubbles near the surface of the glass. Upper right is a photograph of the window defect which appears as streaks. Upper left is […]
Glass Failure Analysis: Tempered Glass Pot Cover
California glass expert performs a root cause failure analysis on a failed tempered glass pot cover. The pot cover failed “spontaneously” in the users home, and the handle with captured glass was submitted to the California failure analysis lab for evaluation. The failure was caused by the interaction of the handle hardware (i.e. cup washer) […]
Tempered Glass Expert Discusses Glass Edge Finish
California glass expert discusses the importance of edge finish on tempered glass. Tempered soda lime glass has replaced low expansion borosilicate glass for small oven doors and glass tops for cookware. This reduces costs, but can reduce reliability. One important aspect of these tempered glass pieces is the edge quality. Poor edge finishing can introduce […]
Tempered Glass Expert Discusses Edge Finish
Tempered glass expert reminds those using tempered glass as oven doors or in other applications where the glass will be non-uniformly heated that the glass edge finish is critical. If the center of the glass door is heated first, the door edge is put into tension. If the edging is poorly done, the door […]
California Glass Expert Witness Discusses Bending Failure of Tempered Glass
California Glass Expert performs a failure analysis on a tempered glass oven door that failed in bending. Normally the fracture surface of tempered glass shows two sets of Wallner lines that are separated by a band of mist hackle. However if the tempered glass window failure is due to bending, the band of mist hackle […]
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