Creep and shrinkage behavior of improved alternate substrates for magnetic tapes

Author

Higashioji, Takuji ; Bhushan, Bharat

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

1612

Lastpage

1615

Abstract

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 μm to 4.8 μm. 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

Keywords

creep; magnetic recording; polymers; shrinkage; substrates; 6.2 to 4.8 mum; ARAMID; PEN; PET; aromatic polyamide; creep deformation; dimensional stability; film thickness; magnetic tapes; polyesters; shrinkage; substrates; Creep; Elasticity; Mechanical factors; Pollution measurement; Positron emission tomography; Residual stresses; Stability; Strain measurement; Substrates; Viscosity;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.950916

Filename

950916