Creep and shrinkage behavior of improved alternate substrates for magnetic tapes

Creep and shrinkage behavior of improved alternate substrates for magnetic tapes

The long-term creep deformation and shrinkage characteristics of improved alternate substrates for magnetic tapes are presented. The substrates include two polyesters (PET and PEN) and aromatic polyamide (ARAMID). PET film is currently the standard substrate used for magnetic tapes and thinner tensi...

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Veröffentlicht in:IEEE transactions on magnetics 2001-07, Vol.37 (4), p.1612-1615
Hauptverfasser: Higashioji, T., Bhushan, B.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Aramids
Aromatic polyamides
Creep
Creep (materials)
Creep strength
Elasticity
Electronics
Exact sciences and technology
Magnetic and optical mass memories
Magnetic tape
Magnetism
Mechanical factors
Other magnetic recording and storage devices (including tapes, disks, and drums)
Pollution measurement
Polyethylene terephthalates
Positron emission tomography
Residual stresses
Shrinkage
Solvents
Stability
Storage and reproduction of information
Strain measurement
Substrates
Viscosity
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Zusammenfassung:The long-term creep deformation and shrinkage characteristics of improved alternate substrates for magnetic tapes are presented. The substrates include two polyesters (PET and PEN) and aromatic polyamide (ARAMID). PET film is currently the standard substrate used for magnetic tapes and thinner tensilized-type PET, PEN and ARAMID have recently been used as alternate substrates with improved material properties. The thickness of the alternate film ranges from 6.2 /spl mu/m to 4.8 /spl mu/m. The amount of creep deformation is considerably smaller for ARAMID and tensilized-type PET than for PEN. Shrinkage of ARAMID is lower than that of PET and PEN. Based on creep and shrinkage behavior, ARAMID and tensilized-type FET seem to have satisfactory dimensional stability.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.950916