研究和评论:材料科学杂雷竞技苹果下载志》上
菜单ISSN: 2321 - 6212
ISSN: 2321 - 6212
Kholodkov N S Bautin V和Usov N
国家科技大学斯、俄罗斯IZMIRAN,俄罗斯
ScientificTracks抽象:启J垫。Sci >
DOI:10.4172 / 2321 - 6212 c5 - 026
复合材料组成的磁性粒子在聚合物矩阵有一个广阔的区域内的潜在应用。在大多数情况下,合金纳米通过对多元醇方法或球磨技术。这些制备方法的特点是低成本效率,但需要多阶段生产过程。此外,获得的磁性纳米不严格对应于合金状态特征。在目前的报告新的粉体生产提供成本有效的方法。它是气蚀破坏,允许获得各种磁性纳米颗粒具有良好的磁性接近那些著名的固态合金。空泡的形成和崩溃的过程是低压气泡附近快速移动物体在液体的表面。小气泡的崩溃会产生强烈的冲击波,敲出小颗粒从对象的表面变成液体。共振压电陶瓷振动器被用于自制的实验室设施提供空化过程。Fe73Co27纳米粒子与取得了非常高的饱和磁化强度在不同的液体如苯甲醇、甲基丙烯酸甲酯和水。 Rather narrow particle size distributions not exceeded 18% were obtained in all liquids studied. It is found that the average particle size strictly depends on the liquid viscosity. It is given by 475 nm in methyl methacrylate, 196 nm in benzyl alcohol and 80 nm in water, respectively. Magnetic properties of 475 nm Fe73Co27 particles in polymeric matrix were investigated. In the fields of approximately 4 kOe composite were almost saturated, and full saturation was achieved in fields not exceeded 6 kOe. The highest saturation magnetization for this composite was equaled Ms=245.3 emu/g. Using cheap Fe70Co27 nano-powders with high saturation magnetization and small coercive force allows us to reduce the total amount of powder in polymer composite showing increased heating efficiency in alternating magnetic field. These magnetic particles are promising for biomedical applications, in particular, for hyperthermia treatment.
Kholodkov N年代已经完成了他的硕士学位材料科学和技术从莫斯科大学钢和合金。他领域的磁性测量弱腐蚀电流产生的磁场。目前,他是一个博士生雄厚的“斯”,正与软磁粉末。
电子邮件:(电子邮件保护)
