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Microstructure-Properties: I Fracture Toughness - Materials Science ...

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3<br />

Objective<br />

Overview<br />

Crack<br />

Minimztn.<br />

Energy<br />

Absrptin.<br />

Objective<br />

• The objective of this lecture is to show you how to<br />

exploit microstructure in order to maximize<br />

toughness, especially in brittle materials.<br />

• Part of the motivation for this lecture is to prepare<br />

the class for a Lab on the sensitivity of mechanical<br />

properties to microstructure.<br />

• Note that the equations used are not derived -<br />

rather the emphasis is on basic principles and a<br />

broad range of methods for toughening.

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