The hydrogen effect in copper.
01 January 1988
The effect of hydrogen on the physical properties of copper is considered with emphasis on determining which form of hydrogen is responsible for the property change. Three situations in which properties of copper are known to be affected by hydrogen are: 1) thermal charging; 2) cathodic charging; and 3) electroless copper plating. It is concluded that the hydrogen effect results from two different causes: (1) the development of high pressure of molecular (gaseous) hydrogen in voids, and (2) the formation of defects such as dislocations due to the precipitation of absorbed atomic hydrogen in the form of hydrogen molecules.