埋嵌型镍铁合金纳米颗粒的制备及其应变场研究

通过脉冲激光沉积系统和快速热退火工艺,制备了在Al₂O₃薄膜中生长的埋嵌型镍铁合金纳米颗粒; 再通过有限元分析方法,发现退火温度不仅对埋嵌型镍铁合金纳米颗粒的尺寸大小的影响非常显著,而且还会改变镍铁合金纳米颗粒所受到的应变场分布,使纳米颗粒的相关性能得到进一步提升.因此,探究退火温度对埋嵌型镍铁合金纳米颗粒所受到的应变场分布造成的影响有着十分重要的研究意义,同时也为镍铁合金纳米颗粒的机械性能以及软磁性能的调控方法提供了一条崭新的思路.

The Preparation and Strain Field Study of Embedded Ni-Fe Alloy Nanoparticles

Through the pulse laser deposition system and rapid thermal annealing process,the embedded Ni-Fe alloy nanoparticles grown in the Al₂O₃ film are prepared.Through the finite element analysis,it is also found that the annealing temperature not only has a significant effect on the size of embedded Ni-Fe alloy nanoparticles,but also can change the strain field distribution of Ni-Fe alloy nanoparticles,so that the related properties of nanoparticles can be further improved.Therefore,it is of great significance to explore the effect of annealing temperature on the strain field distribution of embedded Ni-Fe alloy nanoparticles,and it also provides a new way to control the mechanical properties and soft magnetic properties of Ni-Fe alloy nanoparticles.