Mechanical wear and degeneration of the magnetic properties of magnetic heads caused by the tape

1 January 1974

journal article
Published by Institution of Engineering and Technology (IET) in Radio and Electronic Engineer

Vol. 44 (6) , 313-318
https://doi.org/10.1049/ree.1974.0086

Abstract

One kind of abrasive wear of magnetic heads is characterized by the generation of a lot of small scratches (typical dimensions: 0.1 μm) due to hard particles embedded in the tape. After scratching, the outer head surface is left under a very high compressive stress (up to 3000 N/mm2in ferrites) which greatly change the magnetic properties of the material. This gives rise to a decreasing short-wavelength sensitivity due to a more or less non-magnetic layer on the head surface.

Keywords

MECHANICAL WEAR
MAGNETIC HEADS
ABRASIVE WEAR
MAGNETIC PROPERTIES
SENSITIVITY
TAPE RECORDERS
MAGNETIC TAPES
SCRATCHES

This publication has 1 reference indexed in Scilit:

Progress in microscopy
Published by Biodiversity Heritage Library ,1961