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Behavior of perpendicular recording materials in Cl and S containing atmospheres

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2 Author(s)
Dubin, R. ; Memorex Corporation, Santa Clara, CA ; Winn, K.D.

The corrosion behavior of Co-Cr and Ni-Fe alloys is reported after exposure to Cl2, SO2, and O2containing test atmospheres at various relative (RH) humidities. Surface Chemistry, physical features, and magnetic properties were characterized. The Ni-Fe alloys exhibited excellent corrosion resistance in elevated RH atmospheres. Co-Cr alloys showed little change in magnetic properties even when significant chemical penetration of the film occurred. Substrate chemical composition proved to be an important factor in sputtered film corrosion behavior.

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Magnetics, IEEE Transactions on  (Volume:19 ,  Issue: 5 )