FeZrN Films: Magnetic and Mechanical Properties Relative to the Phase-Structural State

Abstract

The paper presents results of investigation of Fe65.3–100Zr34.7–0N7.5–0 films prepared by dc magnetron deposition on glass substrates and subsequent 1-hour annealing at temperatures of 300–600 °C. The influence of the chemical and phase compositions and structure of the films, which were studied by TEM, SEM, XRD, and GDOES, on their mechanical properties determined by nanoindentation and static magnetic properties measured by VSM method is analyzed. The studied films exhibit the hardness within a range of 14–21 GPa, low elastic modulus (the value can reach 156 Gpa), and an elastic recovery of 55–83%. It was shown that the films are strong ferromagnets with the high saturation induction Bs (up to 2.1 T) and low coercive field Hc (as low as 40 A/m). The correlations between the magnetic and mechanical properties, on one hand, and the chemical composition of the films, their phase, and structural states as well, on the other hand, are discussed.

Hybrid Core–Shell Microparticles Based on Vaterite Polymorphs Assembled via Freezing-Induced Loading

“…The same conclusions were drawn in other cases. 43 To study the influence of the loading method on the phase composition of the calcium carbonate core, we investigated the diffraction patterns of the intact microparticles and the samples loaded at room temperature and during freezing. The obtained XRD patterns were processed using a full profile analysis by the Rietveld method (Figure 7).…”

“…The difference between amorphous XRD (Figure c) and polycrystalline SAED (Figure d) can be explained by the fact that the sample is “X-ray amorphous” due to the very small size of the nanoparticles in the shell. The same conclusions were drawn in other cases …”

Multilayer metal materials recrystallization mechanism

“…differing in their composition, type, and structure [6,7]. Thus, the formation of a firm connection between separate layers with the combined plastic deformation of the multilayer workpiece is dependent on a series of mechanical, physical, and technological parameters [4].…”

Magnetron-Deposited FeTiB Films: From Structural Metastability to the Specific Magnetic State

“…Earlier, by an example of soft magnetic bulk alloys prepared by casting, we showed that the two-phase Fe+Me IV X state ensuring the high level of functional characteristics can be formed in alloys, the phase state of which is described by equilibrium quasi-binary Fe-Me IV X phase diagrams with eutectic solidification [5]. The development of the approach for soft magnetic film alloys [6][7][8][9] prepared under conditions of rapid solidification from vapor (magnetron deposition) should assume the formation of a metastable phase structural state caused by (i) the formation of an amorphous phase, (ii) the shift of eutectic composition toward the more refractory constituent MeX, (iii) changing the concentration range of existence of the two-phase Fe+MeX equilibrium in the ternary Fe-Me-X system [10,11], and a number of other factors. The adequate qualitative and quantitative estimations of the formed metastable state and its "shift" toward the equilibrium in the course of subsequent annealing are the important stage of the investigations aimed at finding the preparation conditions of two-phase Fe+Me IV X film material ensuring the required level of properties.…”