Abstract

Gravimetric analysis was conducted on Ag-ZrB2 composite layers electrodeposited from an AgCN bath in which ZrB2 particles were suspended to obtain the ZrB2 content. It has been observed that the codeposition rate of ZrB2 particles depends on plating current density and on the plating solution stirring rate, so the effects of plating current density and the stirrer rotation rate for the electrolyte solution on ZrB2 content in composite layers were investigated. The optimum plating condition maximizing the ZrB2 content was found to be at 5A·dm-2 and 900rpm by two-way layout experimentation. A linear relationship between the ZrB2 content and the amount of Ag-ZrB2 composite deposited was found by regression analysis. Thus, it appears that the determination of ZrB2 content from the amount of the Ag-ZrB2 composite is possible.

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