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Model Predicts Defect''s Birthplace.

Publication: NDT Update
Publication Date: 01-OCT-02
Format: Online - approximately 727 words
Delivery: Immediate Online Access

Article Excerpt
Defects, such as cracks in a material, are responsible for everything from malfunctioning microchips to earthquakes. Now Massachusetts Institute of Technology engineers have developed a model to predict a defect's birthplace, its initial features, and how it begins to advance through the be A...

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...material.

The model could especially useful in nanotechnology. "As devices get smaller and smaller, understanding the phenomena of defect nucleation and growth becomes more and more important," says Subra Suresh, head of the Department of Materials Science and Engineering (DMSE). seemingly minuscule dislocation-a local disorder in the arrangement of atoms inside a material-or a crack can drastically compromise the performance of a device.

"There...

NOTE: All illustrations and photos have been removed from this article.



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