LSN03 - ME4123/6123: Failure of Engineering Materials: Lsn...

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Unformatted text preview: ME4123/6123: Failure of Engineering Materials: Lsn 3: Fractography For years mankind has been trying to convey to others his observations of nature through the use of images. Lascaux Cave in Southern France Lascaux Cave in Southern France . . Material Microstructure Characterization Techniques Optical Microscope (OM) Scanning Electron Microscope (SEM) Transmission Electron Microscope (TEM) Atomic Force Microscope (AFM) Not today AFM SEM TEM OM EYE 1nm 1 m 1mm 1m 1nm 1 m 1mm 1m Lateral Resolution Depth Resolution- The point at which two or more objects can be distinguished as separate individual objects. Magnification- The ratio between image size to the object size. Can be varied by changing the distance between the object and the final lens (of the eye) or by inserting a second lens between the two. Depth of Field b a Depth of field will a and b both remain in focus Light vs Electron Microscope...
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This note was uploaded on 09/08/2011 for the course MECHANICAL 4123 taught by Professor Horstemeyer during the Fall '10 term at Mississippi State.

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LSN03 - ME4123/6123: Failure of Engineering Materials: Lsn...

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