Inhibition of Aluminum Corrosion in Alkaline Cleaner by the Addition of Magnesium Ions
Original Publication Date: 1981-Aug-01
Included in the Prior Art Database: 2005-Feb-12
Aluminum substrates for computer disk products are prepared for the application of magnetic coating by first processing through a series of cleaning solutions, the first of which is an alkaline cleaner. This alkaline solution can cause pitting corrosion of the aluminum substrates, some of these pits exceeding the critical defect size and thus causing magnetic recording defects.