Magnetic properties of the suction-cast bulk amorphous alloy: (Fe0.61Co0.10Zr0.025Hf0.025Ti0.02W0.02B0.20)96Y4

The paper presents the research results for the Fe 78 Co 2 Si 9 B 11 amorphous alloy, and after the process of annealing resulting only in the relaxation of the material. The structure relaxations occurring in the volume of test samples lead to the changes in their magnetic and mechanic properties. Therefore the studies on the effect of the structure defects on the properties of these type of materials are important. Understanding the processes occurring during the magnetizing of amorphous alloys can be helpful in the design of modern functional materials for special purposes. The main purpose of this elaboration was to determine the effect of the amorphous structure defects in the state after solidification and after heat treatment on the changes in the magnetizing process and in such parameters as the saturation magnetization and the coercivity field.

Section: Introductionmentioning

confidence: 99%

Effect of structural relaxations within the amorphous structure on the magnetic properties of amorphous tapes from FeCoB family

Szota

2017

“…Transition metals, such as: iron, cobalt and nickel, and elements stabilizing the amorphous structure of the alloys (boron, silicon and phosphorus) are the main components of the soft magnetic amorphous alloys [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Soft Magnetic Properties of Fe-Zr-(Pt)-Nb-Cu-B Amorphous Alloys

Gondro

Błoch

Nabiałek

et al. 2017

Self Cite

alloys. The alloys were investigated in their as-quenched state, in the form of thin ribbons with approximate dimensions as follows: width 3 mm and thickness 20 μm.The investigations were performed utilizing Mössbauer spectrometry and X-ray diffractometry. Also, an evaluation of the low-field magnetic susceptibility and measurements of the magnetization versus temperature and magnetizing field were performed.

“…In this type of alloy, separation of the metastable phases occurs in the so-called supercooled liquid range ΔT above 55 K: ΔT= T x -T g , where T x -crystallisation onset temperature T g -glass transition temperature) [1][2][3][4]. Based on iron, the ferromagnetic amorphous alloys, exhibiting soft magnetic properties, usually go through primal crystallisation [5][6][7][8]. The crystallising phase is rich in iron and placed within the liquid phase subjected to phase separation.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Quenching Rate on the Structure and Magnetic Properties of the Fe-Based Amorphous Alloy

Nabiałek

2016

This paper presents the results of investigations into the structure, microstructure and magnetic properties of Fe61Co10Y8W1B20 amorphous alloy. The alloy samples were in two physical forms: (1) plates of approximate thickness 0.5 mm (so-called bulk amorphous alloys) and (2) a ribbon of approximate thickness 35 μm (so-called classic amorphous alloy). The investigations comprised: X-ray diffractometry, Mössbauer spectrometry, transmission electron microscopy, and selected magnetic measurements; all of the investigations were carried out on samples in the as-quenched state. Analysis of the obtained SEM and TEM images, X-ray diffraction patterns, Mössbauer spectrometry results and measurements of the magnetisation in a high magnetic field facilitated collectively the detailed description of the structure of the investigated alloy, which was found to depend on the quenching speed.