SYNTHESIS OF BORIDE POWDERS AND SOME OF THEIR MAGNETIC-PROPERTIES

被引：33

作者：

DRAGIEVA, I

GAVRILOV, G

BUCHKOV, D

SLAVCHEVA, M

机构：

[1] Higher Institute of Mechanical and Electrical Engineering, Sofia

来源：

JOURNAL OF THE LESS-COMMON METALS | 1979年 / 67卷 / 02期

关键词：

D O I：

10.1016/0022-5088(79)90015-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Boride powders were synthesized by the reduction of cobalt and iron salts by NaBH4. Some of their magnetic properties, i.e. the coercive force and the rectangularity of the hysteresis loop, were investigated. The influence of the NaBH4 concentration, the ratio of Fe2+ to Co2+ and the presence of cation and anion additives in the solution on the coercive force and the rectangularity of the hysteresis loop and also on the boron content of the powders was studied. The boride powders obtained were found suitable for making high density magnetic recording materials. © 1979.

引用

页码：375 / 379

页数：5

共 7 条

[1] Bogenschutz A.F., 1975, LEGIERUNGSUBERZUGE L
[2] BUCHKOV D, 1978, Patent No. 41000
[3] KLEIN HG, 1971, METALLOBERFLACHE, V25, P305
[4] MICROSTRUCTURE ANALYSIS OF CORROSION IN IRON BASED RECORDING TAPES
OLSEN, KH
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1974, MA10 (03) : 660 - 662
[5] OPPERGARD DL, 1961, J APPL PHYS, V32, pS181
[6] MAGNETIC RECORDING TAPE BASED ON IRON PARTICLES
VANDERGIESEN, AA
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1973, MAG9 (03) : 191 - 194
[7] Warf J.C., 1955, US patent, Patent No. 2726170

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