𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Fundamental aspects of electropolishing

✍ Scribed by D. Landolt

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
875 KB
Volume
32
Category
Article
ISSN
0013-4686

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✦ Synopsis

The literature on the mechanism of electropolishing is reviewed . A brief historical outline is given and anodic levelling or macrosmoothing is distinguished from anodic brighteningor microsmoothing . Macrosmoothing results from differences of the gradient of electrical potential and/or concentration on a rough surface. Its rate can be quantitatively predicted in many cases . Microsmoothing results from the suppression of crystallographic factors on the dissolution process . Optimum conditions are achieved when dissolution is under mass transport control . The role of anodic films and of pitting is discussed .

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## Abstract Equations are proposed to predict the three‐dimensional motion of droplets in a spray dryer, based on a knowledge of the characteristics of the atomizing device and of the gas flow patterns in the drying chamber. If the droplet size distribution produced by the atomizing device is known