MAGNETIC PIGMENTS FOR RECORDING INFORMATION

被引：25

作者：

HIBST, H

机构：

[1] BASF AG, Germany

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1988年 / 74卷 / 02期

关键词：

Data Storage; Magnetic--Tape - Iron Compounds - Pigments;

D O I：

10.1016/0304-8853(88)90068-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic pigments used for longitudinal audio, video and data recording have undergone steady development from the invention of particulate magnetic tape in the 1930s to the present day. The current types are acicular γ-Fe2O3, Co-γ-Fe2 O3, CrO2 and α-Fe magnetic pigments, and they differ from their predecessors, i.e. the comparatively coarse spherical carbonyl Fe and cubic ferrite powders, in that they have only one magnetic axis, are very finely divided and have a narrow particle-size distribution. Finely divided, magnetic, multiaxial solids for combined longitudinal/vertical recording attract interest for future high-density mass storage systems. In addition, finely divided, plate-like shaped Ba ferrite pigments hold out prospects for increasing the current values for the storage density by a substantial factor. This applied particularly to vertical recording.

引用

页码：193 / 202

页数：10

共 17 条

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