ELECTROLYTIC COPPER BISMUTH ALLOYS - ELEMENTAL COMPOSITION AND STRUCTURAL STATE

Electrolytic copper-bismuth alloys deposited from a trilonate electrol yte at various cathode potentials are investigated for elemental compo sition and structural state by Auger spectroscopy and X-ray analysis. It is shown that in all deposits thus obtained the principal component s are accompanied by elements of impurity (oxygen, carbon, and nitroge n), which are incorporated in the alloys as trilon B anions. At high d eposition potentials, when ultradisperse or amorphous phases are forme d on the cathode, a significant proportion of the oxygen finds its way into the deposits as a result of deposit oxidation in the course of e lectrolysis.