| Project/Area Number |
03303007
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| Research Category |
Grant-in-Aid for Co-operative Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
金属材料(含表面処理・腐食防食)
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| Research Institution | WASEDA UNIVERSITY |
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Principal Investigator |
OSAKA Tetsuya WASEDA UNIV. APPLIED CHEM. PROFESSOR, 理工学部, 教授 (20097249)
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| Co-Investigator(Kenkyū-buntansha) |
HIRATSUKA Nobuyuki SAITAMA UNIV. ASOC. PROFESSOR, 工学部, 助教授 (20114217)
OKUNO Hikaru TSUKUBA UNIV. ASOC. PROFESSOR, 構造工学系, 助教授 (60169240)
HOSHI Yohichi TOKYO INST. OF POLYTECHNICS ASOC. PROFESSOR, 工学部, 助教授 (20108228)
YAMAZAKI Yohtaro TOKYO INST. TECH. ASOC. PROFESSOR, 総合理工学研究科, 助教授 (50124706)
TAKAHASHI Migaku TOHOKU UNIV. ASOC. PROFESSOR, 工学部, 助教授 (70108471)
MATSUBARA Hiroshi NAGAOKA UNIV. OF TECH. RESEARCH ASOC. (00202325)
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| Project Period (FY) |
1991 – 1992
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| Project Status |
Completed (Fiscal Year 1992)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1992: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | HIGH DENSITY MAGNETIC RECORDING / PERPENDICULAR MAGNETIC RECORDING MEDIA / MAGNETIC THIN FILM |
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| Research Abstract |
The formation and evaluation on highly functional thin films by various methods such as sputtering, evaporating and plating were studied on the basis of the application of them to ultrahigh density magnetic recording media and heads for perpendicular magnetic recording system. The microstructure of thin films for the media and head has to be controlled with crystal and also atomic structure level, and also the design considering the read/write systems should be paid to the structure control. On the basis of such idea, the research group discussed the media consisted of different methods such as Co ferrite, Ba ferrite, electroless Co alloys, and also the combination of some heads.
In those systems, one of the optimum systems, double layered media with very thin quasi-soft underlayer with a combination of ring type head is proposed. The microstrucure of media is also analyzed to be composed of Co base magnetic particles dispersed in the non-magnetic components. Such results were discussed at our several meetings.
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