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一、引言随着科学技术和国民经济的发展,硅钢片的使用日益广泛,对它的研究逐步深入。最近几年不少学者对涂层硅钢片磁畴的研究产生了极大的兴趣。1975年yamamoto等首次用50KV扫描电镜观察到涂层下面的硅钢畴纹;1980年奥地利pfütgner博士用高浓度磁性悬浮液涂在硅钢片上,然后稀释冲淡显示出磁畴结构,开了粉纹法研究磁畴的先例。笔者突破传统的悬浮液配制方法,选用γFe_2O_3磁粉加上润滑性能较好的附着剂制成的悬浮液,涂在硅钢片上几秒钟内就能显
I. INTRODUCTION With the development of science and technology and national economy, the use of silicon steel sheet is more and more widespread, and the research on it has been gradually deepened. In recent years, many scholars have made great interest in the study of coated silicon steel magnetic domains. In 1975, Yamamoto et al. First observed the silicon steel pattern below the coating layer by 50KV scanning electron microscope. In 1980, Dr. Pfütgner Austria applied a high concentration of magnetic suspension to the silicon steel sheet, and diluted dilute to show the magnetic domain structure. Magnetic domain precedent. I break through the traditional suspension preparation method, the choice of γFe_2O_3 magnetic powder with a lubricant of better adhesion made suspension can be painted in a few seconds on the silicon steel can be significant