Preparation of M- and W-type hexaferrite particles by the glass crystalization method on the basis of the pseudo-ternary system Fe 2 O 3 - BaO - B 2 O 3
Preparation of M- and W-type hexaferrite particles by the glass crystalization method on the basis of the pseudo-ternary system Fe 2 O 3 - BaO - B 2 O 3
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基于准三元体系Fe 2 O 3 - BaO - B 2 O 3 玻璃晶化法制备M、W型六角铁氧体颗粒
DOI：
10.1109/tmag.1987.1064766
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
F. Haberey
中科院分区：
文献类型：
--
作者：
F. Haberey
研究了用玻璃结晶法制备M型和w型钡六铁素体颗粒。为此，详细阐述了fe2o3 - bao - b2o3赝三元相图中baf12o19发生初晶的部分。这个三维区域被发现位于三角形fe2o3 - ba2o3 - ba2o3 -BaFeO 2,5。baf12o19在55 mol% BaO， 20 mol% b2o3和25 mol% fe2o3附近的最低晶化温度接近800℃。利用该体系的知识，还可以用玻璃结晶法合成w型ba -六铁素体粒子（bazn2 Fe 16o 27）。给出了用该方法制备的M型和w型六铁氧体颜料的磁性数据。颗粒大小从十分之一微米到十多微米不等。
The preparation of M- and W-type Ba-hexaferrite particles by the glass crystallization method was investigated. For this purpose that part of the pseudoternary phase diagram Fe 2 O 3 -BaO-B 2 O 3 was elaborated in which primary crystallization of BaFe 12 O 19 occurs. This three-dimensional region was found to be located within the triangle Fe 2 O 3 -BaB 2 O 4 -BaFeO 2,5 . The lowest temperature of primary crystallization of BaFe 12 O 19 is close to 800°C near the composition 55 mol% BaO, 20 mol% B 2 O 3 and 25 mol% Fe 2 O 3 . Using the knowledge of that system it was also possible to synthesize W-type Ba-hexaferrite particles (BaZn 2 Fe 16 O 27 ) by the glass crystallization method. Magnetic data of M- and W-type hexaferrite pigments prepared by that method are given. Particle size from a tenth of a micron to more than ten microns was obtained.