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Pole Tip Recession and Staining at the Head to Tape Interface of Linear Tape Recording Systems by E Sourty; M Wild; J.L Sullivan is a Engineering article available to read on EtoBox.

What is Pole Tip Recession and Staining at the Head to Tape Interface of Linear Tape Recording Systems about?

The tribology of the head to tape interface (HTI) of two linear tape recording systems, Travan TM NS20 and OnStream ADR TM are studied from the viewpoint of pole tip recession (PTR) and stain transferred from the tape. Heads tested in humid conditions (60% RH) show the highest PTR increase with deep and wide grooves forming on the pole surface, presumably ploughed by large fragments pulled out from the ceramic in a single catastrophic event. Smaller pullouts are likely to sediment within the recessed poles and increase the PTR acting as three-body abrasive particles. Both the recession of the TiC phase in respect to the Al 2 O 3 phase over the Al 2 O 3 -TiC ceramic used as tape bearing surface (TBS) and the detection of Ti over the pole tip area by Auger electron spectroscopy (AES) identify the pullouts as being TiC fragments. XPS analysis shows a partial oxidation of the TiC phase, however, too superficial to account for the TiC pullout. Stain is detected on the heads either as discrete or restrained deposits (at high humidity) or as a continuous film, forming preferentially over the pole tip surface. The transfer films arises from the recessed pole edge at low humidity (10% RH) a

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Author

E Sourty; M Wild; J.L Sullivan

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0043-1648)

Published

2002

Language

EN

Field

Engineering (Physical Sciences)