以炼钢烟尘为原料制备硬磁铁氧体恒磁瓷的研究  

STUDY ON PRERARATION OF PERMANENT FERRITE CERAMICS FROM OPEN-HEARTH FURNAC DUST

作　　者：张永祥[1] 邓刚[1] 祖光裕[1] 包兴[1] 张振德[1] 崔广仁[1] 王品卿[1] 

机构地区：[1]天津大学电子工程系,鞍山钢铁公司

出　　处：《硅酸盐学报》1995年第3期253-258,共6页Journal of The Chinese Ceramic Society

摘　　要：利用炼钢平炉尘为原料，通过晶型转化成功地制成了（ＢＨ）＿（ｍａｘ）为７．２８ｋＪ·ｍ￣（－３）的各向同性钡铁氧体（属于黑瓷系），其性能达到部颁标准。本研究采用Ｘ射线衍射，电子衍射和显微形貌分析的方法，论述并证明了钡、锶铁氧体在制备过程中各种因素的影响和作用，如：原料的晶体结构及其转化，掺杂物质种类和数量的控制等。制备之前，对粉尘的形貌、结构和组成进行了研究，同时也研究了最大磁能积和成型、球磨、预烧、第二次烧结以及添加物质的影响之间的关系。文中展示了用形貌相与反应产物的模拟相表示相应反应过程中的化学物理状态。并且，钡、锶铁氧体六角形结构与磁性能之间的关系也在本工作中进行了研究，开辟了一条全新的原料来源，对于治理环境污染具有重大的意义。This paper describes the preparation of isotropic permanent magnetic barium ferrites(belong toblack ceramic system)with (BH)_(max)=7.28kJ·m￣(-3) made of open-hearth furnace dust by means of crystalphase transformation and activation. Their properties are in accordance with the national standard of isotropicmagnetic materials. Influences of some factors on barium and strontium ferrites during preparation are dis-cussed and proved by means of X-ray diffraction, electron-diffraction and electron microscope analysis.Be-fore preparation,the shape,structure and composition of the dust were investigated.Relations between mag-netic energy products and the sintering system were studied.Our unremitting efforts show that this techniquecan develope a new source of raw material and has a great significance in the treatment of environmental pol-lution.

关 键 词：平炉尘 炼钢烟尘 硬磁铁氧体 晶型转化 恒磁瓷 

分 类 号：TM277.5[一般工业技术—材料科学与工程] X756.01[电气工程—电工理论与新技术]