optical microscopy with optical microscopy the light microscope is used to study the microstructure optical and illumination systems are its basic elements for materials that are opaque to visible light ...
Filetype Power Point PPT | Posted on 08 Sep 2022 | 2 years ago
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...Optical microscopy with the light microscope is used to study microstructure and illumination systems are its basic elements for materials that opaque visible all metals many ceramics polymers only surface subject observation must be in a reflecting mode contrasts image produced result from differences reflectivity of various regions investigations this type often termed metallographic since were first examined using technique preparation normally careful meticulous preparations necessary reveal important details specimen ground polished smooth mirrorlike finish accomplished by successively finer abrasive papers powders revealed treatment an appropriate chemical reagent procedure etching reactivity grains some single phase depends on crystallographic orientation consequently polycrystalline characteristics vary grain figure b shows how incident reflected three etched each having different depicts structure as it might appear when viewed luster or texture reflectance properties photomic...