Homogeneous mesoporous Ni-rich Ni–Pt thin films with adjustable composition have been synthesised by one-step micelle-assisted electrodeposition. The films exhibit a face-centred cubic solid solution (single phase) and their magnetic and mechanical properties can be tuned by varying the alloy composition. In particular, the Curie temperature (T_C) is shown to decrease with the Pt content and thin films with a T_C close to room temperature (i.e. Ni₅₈Pt₄₂) and below can be produced. Hysteresis loops show a decrease of saturation magnetisation (M_s) and coercivity (H_c) with decreasing Ni content. A comparison of porous and dense films reveals significantly lower saturation magnetic field strength for porous films. Concerning mechanical properties, mainly two trends can be observed: a decrease of the Young's modulus of the nanoporous films with respect to dense films by 10% in average and a progressive increase of Young's modulus with the Ni content from 4.2 GPa to 5.7 GPa in both types of films. The tunability of properties and facility of synthesis make this alloy a promising material for microelectromechanical systems (MEMS).

中文翻译：

---

通过电沉积调整介孔单相Ni-Pt膜的磁和机械性能

通过一步胶束辅助电沉积合成了具有可调组成的均相介孔富Ni-Pt薄膜。这些膜表现出面心立方固溶体（单相），并且可以通过改变合金成分来调整其磁性能和机械性能。特别地，居里温度（Ť _Ç）被示出具有Pt含量和薄膜具有降低Ť _Ç接近室温（即，镍₅₈的Pt ₄₂）和下均可生产。磁滞回线表明饱和磁化强度（M _s）和矫顽力（H _c），降低镍含量。多孔膜和致密膜的比较表明，多孔膜的饱和磁场强度明显较低。关于机械性能，主要可以观察到两个趋势：相对于致密膜，纳米多孔膜的杨氏模量平均降低10％；随着镍含量从4.2 GPa到5.7 GPa，杨氏模量逐渐增加。电影类型。性能和合成设施的可调性使该合金成为微机电系统（MEMS）的有前途的材料。