Abstract
Magnetostrictive Ni0.837Cu0.148Co0.015Fe2.000O4 ferrite films 10–60 μ thick were prepared on alumina and sapphire plates by vacuum-arc evaporation and by cathodic sputtering. The films of 30-μ thickness deposited on a sapphire rod, generated and detected 50-MHz shear waves by operation in conjunction with a quartz transducer. A commercial cubic magnet, of subcentimeter size, applied a bias field sufficient to operate the films. On the other hand, the films of 40-μ thickness sputtered on an alumina plate with eight-turn meander line on their surfaces generated and detected 10.8-MHz (wavelength 400 μ) surface elastic waves. It was unnecessary to apply any external bias field to operate the films, due to the use of a large internal stress induced in them during the heat treatment. Consequently, the deposited and the sputtered ferrite films can be applied to the shear and surface elastic wave transducers, respectively.
Published Version (
Free)
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.
