A new inexpensive method for the preparation of acicular precursors for magnetic recording media | Zendy

M. R. Anantharaman | Zendy; K V Joseph | Zendy; H. V. Keer | Zendy

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A new inexpensive method for the preparation of acicular precursors for magnetic recording media

Author(s) -

M. R. Anantharaman,

K V Joseph,

H. V. Keer

Publication year - 1997

Publication title -

bulletin of materials science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.35

H-Index - 72

eISSN - 0973-7669

pISSN - 0250-4707

DOI - 10.1007/bf02744885

Subject(s) - acicular , materials science , crystallite , oxalate , aqueous medium , precipitation , aqueous solution , ferrous , chemical engineering , metallurgy , inorganic chemistry , microstructure , organic chemistry , chemistry , physics , meteorology , engineering

Magnetic materials meant for audio/video recording applications necessitate that polycrystalline materials be in acicular shape. So preparation of acicular precursors for magnetic storage materials assumes significance. The employment of aqueous solutions do not produce needle shape crystallites. Glycerol is one of the complexing media used for the precipitation of ferrous oxalate dihydrate. An inexpensive method using starch for preparation of acicular particles is described. The influence of an additive namely Gd on acicularity is also investigated

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