Failure Analysis Lab examines performs a failure analysis on surface mount glass encapsulated Zener diodes. These diodes were in an appliance control board, and they are surface mounted to the underside a printed circuit board. The entire board is encapsulated in rigid polyurethane. There was a significant yield loss due to cracking of the glass […]
Glass Expert Performs Failure Analy on Low E Windows
California failure analysis lab was asked to determine why windows in an expensive hilltop home failed. The windows in question were Lo- E windows that were tinted to absorb infra-red light. At this location two south facing, side-by-side windows cracked. The window expert at Read Consulting was asked to perform a glass failure analysis to […]
Tempered Glass Expert Performs Failure Analysis
California Failure Analysis Lab routinely performs tempered glass failure analysis. In this case the glass expert determined that the tempered glass failed as a result of a pointed object that created crush damage that penetrated the compressive layer of the tempered glass. The glass was a large piece 10 mm thick. Thus, the compressive layer […]
Porcelain Failure Analysis
California failure analysis lab is able to show similarities between glass failure analysis and porcelain failure analysis. The predominant tool for tracking a crack in glass is to look at “Wallner lines” These can tell the direction of travel of a crack in glass. This allows the glass failure expert to trace the crack back […]
Failure Analysis Lab Examines a Failed Plastic Chair
California failure analysis laboratory performed a failure analysis on a failed plastic chair. A 190 pound man sat in it and the right leg broke under him. This was a brittle plastic failure that went along a molding weld line. The fracture surface shows brittle failure in bending.
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