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The effects of ultrasonic cleaning on the microstructural characteristics of thermally sprayed coatings

Book ·
OSTI ID:379559
 [1]
  1. Buehler Ltd., Lake Bluff, IL (United States)
Accurate microstructural analysis of thermally sprayed coatings is possible only if each step of the preparation process is performed in a careful manner. Various methods are used to evaluate the characteristics of thermally sprayed coatings, but metallographic examination provides the most information about the many different coating characteristics. Any one step that is improperly performed during the metallographic preparation process can potentially produce incorrect coating characterization information. Ultrasonic cleaning of coated samples between preparation steps and after the completion of the entire process is not an accepted practice. The possibility of enlarging existing porosity is a concern due to the ultrasonic action. A study was conducted on five different coating types specifically evaluating the effects of ultrasonic cleaning on each coating. Variations in the coating porosity were quantified using image analysis and photomicrography.
OSTI ID:
379559
Report Number(s):
CONF-9509182--; ISBN 0-87170-541-9
Country of Publication:
United States
Language:
English

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