Title :
Shrinkage and viscoelastic behavior of alternative substrates for magnetic tapes
Author :
Weick, Brian L. ; Bhushan, Bharat
Author_Institution :
Dept. of Mech. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
11/1/1995 12:00:00 AM
Abstract :
Viscoelastic and shrinkage characteristics of alternative substrates for magnetic tapes are presented. The substrates evaluated include two polyesters (PET and PEN), an aromatic polyamide (ARAMID), a polyimide (PI), and poly(benzoxazole) or PBO. Thicknesses of the films range from 14.4 μm for PET to 4.4 μm for ARAMID. Results are also presented for ultra-thin magnetic tapes which use PET, PEN, or ARAMID as substrates. Based on their creep behavior (and relative cost), PEN or ARAMID appear to be suitable alternative substrates to PET
Keywords :
creep; magnetic recording; magnetic tapes; polymer films; shrinkage; substrates; viscoelasticity; ARAMID; PBO; PEN; PET; PI; aromatic polyamide; creep; films; magnetic tapes; poly(benzoxazole); polyesters; polyimide; shrinkage; substrates; viscoelasticity; Creep; Elasticity; Magnetic films; Magnetic materials; Positron emission tomography; Strain measurement; Stress measurement; Substrates; Temperature; Viscosity;
Journal_Title :
Magnetics, IEEE Transactions on
