Title :
Corrosion study of metal particle, metal film, and Ba-ferrite tape
Author :
Speliotis, Dennis E. ; Peter, Klaus J.
Author_Institution :
Adv. Dev. Corp., Burlington, MA, USA
fDate :
11/1/1991 12:00:00 AM
Abstract :
The authors investigated the corrosion susceptibility of very high coercivity metal particle (MP) and metal evaporated (ME) tapes and Ba-ferrite tapes when exposed to 50°C and 80% RH for 7.5 weeks. The tapes are used in 8-mm video and digital audio tape applications. The effects of corrosion were studied by measuring the error statistics at a density of 53 kfci (2100fc/mm) using an 8-mm helical scan recorder with MIG heads. A large increase in errors was observed for all the MP and ME tapes studied (typically by two orders of magnitude), but also a large variation in corrosion stability among the tapes from different manufacturers
Keywords :
barium compounds; corrosion; ferrite applications; magnetic tapes; 50 C; 7.5 weeks; 8 mm; Ba-ferrite tapes; BaFe12O19; MIG heads; corrosion stability; corrosion susceptibility; digital audio tape; error statistics; helical scan recorder; high coercivity metal particle; metal evaporated tapes; video tape; Corrosion; Degradation; Error analysis; Life testing; Manufacturing; Particle measurements; Pollution measurement; Protection; Surface morphology; Volume measurement;
Journal_Title :
Magnetics, IEEE Transactions on
