"A Study of the Electrodeposition of Chromium Directly on Aluminum" by Paul E. Truttschel

Date of Award

6-1940

Degree Type

Bachelors Essay

Degree Name

Bachelor of Science (BS)

Department

Chemistry

First Advisor

Herbert Heinrich

Second Advisor

Donald J. Keegan

Abstract

The electrolytic deposition of chromium has been an accomplished fact since the early 1920's. Considerable investigation had taken place before this, but it was not until 1920 that any process had been devised to make chromium plating successful commercially. Since then, and especially in the last ten years, this has been a favorite research problem amony[sic] many electrochemists and the results have been most gratifying.

By far the greatest amount of work has been done, however, using metals such as copper, steel, and brass for cathodes, very little information being obtainable concerning the chromium plating of aluminum. Most of the investigations in which aluminum was used as a base metal were conducted after a plate of copper or nickel had first been applied to the aluminum.

Recently methods have been devised for the direct deposition of chromium on aluminum, heavy deposits of good adhesion being obtained. These plates, however, leave the plating bath a dull gray, and it is quite difficult to buff the plate to a high luster although it is being done. It was the purpose of this investigation to use a new bath in an attempt to learn whether or not a satisfactory plate could be obtained on aluminum without the use of the etching operation which is, in all probability, the cause of the dull finsh[sic] of the deposits now obtained; or if not, and time permitting to determine whether or not a deposit could be obtained which would easily buff to the required luster.

Comments

A Thesis Submitted to The Faculty of the College of Liberal Arts of Marquette University in Partial Fulfillment of the Requirements For the Degree of Bachelor of Science, Milwaukee, Wisconsin

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Chemistry Commons

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