Abstract
Double-coated particulate magnetic recording media have been used to optimize recording performance and, in some cases, to reduce cost. The concept involves the simultaneous coating (wet on wet) of a relatively thick (typically 2 to 3 microns) lower coercivity or nonmagnetic underlayer, and a much thinner (a few tenths of a micron) higher coercivity top layer. The author examines and compares some of the most recent and most promising implementations of double-coating technology, which permits the fabrication of very thin, uniform, and very smooth top layers, thus reducing demagnetization and improving short wavelength response and signal-to-noise ratio. In the case of Ba-ferrite top layers, lower coercivity underlayers serve to also boost long wavelength output. >
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
