| 1. | Study of the formation of twodimensional magnetic domains 二维磁畴结构形成的蒙特卡洛方法研究 |
| 2. | Texture and magnetic domain of nanocomposite ndfeb permanent magnetic alloys 纳米双相钕铁硼永磁合金的织构及磁畴 |
| 3. | Magnetic domain attachment 磁畴附件 |
| 4. | Blade magnetic domain 刀片形磁畴 |
| 5. | For instance , even the earliest computer hard drives used magnetoresistance ? a change in electrical resistance caused by a magnetic field ? to read data stored in magnetic domains 譬如说,即使最早的电脑硬碟,也是利用磁阻(即用磁场来改变电阻大小)来读取储存在磁域上的资料。 |
| 6. | The research work as follow : magnetic domain structure of ferromagnet is systemically analyzed basing on the theory of ferromagnet , and we analyze the microcosmic mechanism of magnetic domain structure 本文以此为研究背景,开展了以下几方面的研究工作:根据铁磁学的相关理论,系统分析了铁磁材料的磁畴结构。 |
| 7. | It is found that the specific saturation magnetization decreases with the decrease of the nanocrystallites grain size . the dominating reason is the grain size of the nanocrystallites less than the critical size of the single magnetic domain 发现对于纯净的纳米晶粒来说,饱和磁化强度随着晶粒线度的减小而减小,这主要是因为所制备的纳米晶微粒的晶粒线度小于单畴颗粒的临界粒径。 |
| 8. | It indicates that these materials are optimum cadidate for application . the magnetostriction of terfenol - d was calculated based on the model of magnetic domain turning and the model of magnetic domain wall motion respectively . the experiment value is consistent with that of calculation in low magnetic fields 应用磁畴转动模型和畴壁位移模型计算了terfenol - d的磁致伸缩,计算结果表明在低磁场下,应用畴壁位移模型得到的计算结果与实验结果符合较好。 |
| 9. | In general , polycrystal or twin magnetostrictive materials are used as the drive unit in micro - displacement actuator . however , the displacement output of the actuator under low magnetic field is small and its precision is limited , as a result of motion restriction of magnetic domain walls by grain boundaries in polycrystal or twin magnetostrictve materials 磁致伸缩是一种磁?机械耦合现象,以tb - dy - fe为代表的稀土超磁致伸缩材料,其伸缩量为普通压电陶瓷的30 - 50倍,响应时间低于10 . 6秒,是理想的位移致动材料。 |
| 10. | According to the minimum principle in energy , we analyze the microcosmic mechanism of magnetic domain construction and the main factor that affect the shape , size and connecting of the magnetic domain etc . from the microcosmic mechanism of ferromagnet , we analyze how stress influence the magnetic domain and magnetic domain wall , and discover the increase of stress energy and magnetism elasticity energy which destroy the balance of system energy make up the influence of magnetic domain structure , then set up basic disciplinarian between stress and characteristic of magnetism 同时根据能量最小原理,从理论上分析了磁畴结构存在的微观机理以及影响磁畴结构运动、变化的主要因素,得出了应力的存在将影响磁畴的形状、大小和搭配方式等结论。从铁磁晶体的微观机理出发,研究了应力对磁畴和磁畴壁的影响,发现应力影响磁畴结构的本质是由于应力的作用使得铁磁晶体增加了应力能和磁弹性能,体系为了达到新的平衡,导致了磁畴结构变化,并研究了应力与铁磁晶体磁特性之间的基本规律。 |