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Glass Cookware Failure Analysis: Pyrex Pie Plate Failure

February 18, 2014 By Tom Read Leave a Comment

Fracture Surface at One Failure Origin Assembled Pie Plate Showing Several Failure Origins Read Consulting Failure analysis lab performed a glass failure analysis. An annealed borosilicate glass Pyrex baking dish failed as a result “thermal shock”. There were multiple origins for the failure, and these all initiated at damage sites on the bottom of the […]

Filed Under: Failure Analysis Tagged With: Bottle, Cookware, Glass, Pyrex

Failure Analysis of Glass Pot: Visions Cookware

October 5, 2011 By Tom Read Leave a Comment

A failure analysis  was performed on a broken 5 quart stove top glass pot. The origin was determined with optical microscopy, and the broken pot was assembled to show how cracking proceeded. The re-assembled pot is shown upside down in the upper left photograph. The failure originated at a preexisting “chip” on the interior at […]

Filed Under: Failure Analysis Tagged With: Cookware, Glass, Manufacturing Defect, Tempered Glass

Glass Expert Discusses Termpered Glass Cookware

April 12, 2010 By Tom Read Leave a Comment

Modern Pyrex glass cookware is now made from tempered soda lime glass. As a result, there is a potential that the tempered glass failure will create dangerous projectiles. In one case it was found that if the temper glass stresses are not symmetrical, flying glass pieces will occur. In the present case, tempered glass cookware […]

Filed Under: Failure Analysis Tagged With: Cookware, Glass Cookware, Pyrex, Tempered Glass

Read Consulting Failure Analysis

Thomas L. Read, PhD,
1435 Fulton Road Santa Rosa, CA
Phone: 707-494-5089
email: info@readconsulting.com

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Read Consulting Failure Analysis

Thomas L. Read, PhD,
1435 Fulton Road Santa Rosa, CA
Phone: 707-494-5089
email: info@readconsulting.com

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Registered Professional Engineer

Thomas L. Read, PhD., CEO
Registered Professional Engineer
Certificate No. MF002174
State of California.

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