The Past and Future of the Magnetic Recording Media (特集 記録用磁性材料) The Past and Future of the Magnetic Recording Media
The crystal structure of goethite (α-FeOOH) is orthorhombic. When precipitated from aqueous solution, goethite particles are fine and acicular. The fine size and acicular shape were essential to the evolution of high performance magnetic recording media such as audio tapes, video tapes and floppy discs. A series of studies on the preparation, the topochemical reaction and the characterization of iron oxyhydroxides and related oxides were one of the most important fields of the Japan Society of Powder and Powder Metallurgy in the 1960's and 1970's. They had contributed greately for the establishment and eventual spectacular development of magnetic recording industries. In this paper, the author wish to describe the past important milestones and personal expectations to the future of magnetic recording media.
粉体および粉末冶金 45(7), 615-620, 1998-07-15
Japan Society of Powder and Powder Metallurgy