Title :
High abrasion resistance laminated Sendust VTR heads
Author :
Ishiwata, Nobuyuki ; Okumura, Toshiyuki ; Osaka, Akihiro ; Shinkai, Shigeru ; Itonaga, Norio ; Kitamura, Mikio ; Urai, Haruo
Author_Institution :
NEC Corp., Kanagawa, Japan
fDate :
9/1/1992 12:00:00 AM
Abstract :
High-performance laminated sputtered Sendust (LSS) video heads with high abrasion resistance have been realized by using a newly developed CaO-TiO2-NiO ceramic substrate. For acceptable head abrasion for practical use of 15 μm, head life is more than 1000 h at more than 20 m/s relative tape-head speed. Low magnetostriction Sendust films provide high reproduce voltage for the head. The LSS head, with CaO-TiO2-NiO substrate, has sufficient performance for use as high-definition television (HDTV) video tape recorder (VTR) heads
Keywords :
abrasion; laminates; magnetic heads; magnetic thin film devices; video tape recorders; CaO-TiO2-NiO ceramic substrate; HDTV VTR head; head life; high abrasion resistance; high reproduce voltage; laminated Sendust VTR heads; low magnetostriction Sendust; video heads; Ceramics; HDTV; Magnetic films; Magnetic heads; Magnetostriction; National electric code; Substrates; Thermal expansion; Thermal resistance; Video recording;
Journal_Title :
Magnetics, IEEE Transactions on
