Preparation and Research of Soft Magnetic Amorphous Materials | Translated by Huaijun Sun
--Frontier Scientific Publishing Pte. Ltd. 2025.3.
ISBN: 979-8-9591-3759-5
Ⅰ. ① Preparation and Research of Soft Magnetic Amorphous Materials Ⅱ. ① Huaijun Sun Ⅲ. ① Composition
Optimization of... ② Development of Low-Temperature... ③ Performance Optimization of...
Title: Preparation and Research of Soft Magnetic Amorphous Materials
Publication: Frontier Scientific Publishing Pte. Ltd.
Address: 195 PEARL’SHILLTERRACE, #03-50K, SINGAPORE
Postal code: 168976
Format: 185mm×260mm 1/16
Number of words: 250000 words
Edition: 2025.3. First edition
Printing: 2025.3. For the first time
ISBN: 979-8-9591-3759-5
List Price: US $ 68.00
Chapter 1 Introduction .....................................................................................1
1.1 History and development of bulk amorphous alloy ................................................1
1.2 Properties and applications of bulk amorphous alloy ............................................4
1.3 Formation mechanism of bulk amorphous alloy.....................................................9
1.3.1 Structural factors of large amorphous alloy formation......................................... 10
1.3.2 Thermodynamic factors for the formation of large amorphous alloys................. 12
1.3.3 Kinetic factors of large amorphous alloy formation............................................. 14
1.4 Evaluation parameters of amorphous formation ability..........................................15
1.4.1 Approximate glass transition temperature Trg...................................................... 15
1.4.2 Supercooled liquid phase region ∆Tx......................................................................................................................16
1.4.3 γ Parameters ......................................................................................................... 17
1.5 Preparation and post-treatment of amorphous wire ................................................19
1.5.1 Preparation method of amorphous alloy wire....................................................... 19
1.5.2 Treatment method of amorphous alloy crystallization ......................................... 25
1.5.3 Giant magnetic impedance effect.......................................................................... 31
1.6 Iron-based soft magnetic amorphous alloys............................................................38
1.6.1 Development and research status of FeCo based soft magnetic alloy.................. 38
1.6.2 Research status of Co-based amorphous alloy ..................................................... 43
1.6.3 Low temperature electrical transport properties of amorphous metals................. 44
1.7 Mechanism and research status of absorbing materials..........................................52
1.7.1 The birth and development of absorbing materials............................................... 52
1.7.2 Classification of absorbing materials.................................................................... 54
1.7.3 Loss mechanism of absorbing materials............................................................... 56
1.7.4 The principle of absorbing waves by absorbing materials.................................... 59
1.7.5 Research status of absorptive materials................................................................ 62
Chapter 2 Study on the formation ability and magnetic properties of cobalt-based
alloy amorphous materials................................................................................... 65
2.1 Influence of element adjustment on the formation ability of cobalt-based alloy
amorphous.....................................................................................................................65
2.1.1 Introduction........................................................................................................... 65
2.1.2 Experimental method............................................................................................ 66
2.1.3 Theoretical basis of element selection .................................................................. 67
2.1.4 Influence of B and Si element adjustment on the formation ability of CoFeBSiNb
alloy system amorphous................................................................................................. 71
2.1.5 Influence of Nb element adjustment on the formation ability of CoFeBSiNb alloy
system amorphous.......................................................................................................... 79
2.1.7 Summary of this chapter....................................................................................... 87
2.2 Analysis of cobalt-based alloy amorphous formation ability..................................89
2.2.1 Introduction........................................................................................................... 89
2.2.2 Analysis of free energy state of Co-Fe-B-Si-Nb alloy system amorphous........... 89
2.2.3 Analysis of non-crystalline crystallization process of Co-Fe-B-Si-Nb alloy system
....................................................................................................................................... 94
2.2.4 Critical cooling rate of Co-Fe-B-Si-Nb alloy system ........................................108
2.2.5 Summary of this chapter.....................................................................................115
2.3 Study on magnetic properties of cobalt-based bulk amorphous alloys.................116
2.3.1 Introduction.........................................................................................................116
2.3.2 Experimental method..........................................................................................118
2.3.3 Influence of element adjustment on magnetic properties of Co-Fe-B-Si-Nb alloy
system ..........................................................................................................................119
2.3.4 CoFeBSiNb Study on giant magnetic resistance effect of amorphous alloy ......125
2.3.5 Summary of this chapter.....................................................................................137
2.4 Influence of Mo element addition on the formation ability and properties of CoFeBSiNb alloy system amorphous.....................................................................................139
2.4.1 Introduction.........................................................................................................139
2.4.2 Influence of Mo element addition on the thermodynamic properties of CoFeBSiNb
alloy system .................................................................................................................139
2.4.3 Analysis of the formation ability of amorphous alloy system ...........................141
2.4.4 Analysis of magnetic and mechanical properties of CoFeBSiNbMo alloy system
.....................................................................................................................................147
2.4.5 Summary of this chapter.....................................................................................155
Chapter 3. Study on low temperature glass wrapping amorphous wire ....159
3.1 Study on the preparation process of low temperature glass wrapped amorphous
alloy wire.....................................................................................................................159
3.1.1 Development history of glass wrapped amorphous wire....................................160
3.1.2 Preparation principle of low temperature glass wrapped amorphous wire.........165
3.1.3 Low temperature glass wrapping amorphous wire preparation device ..............169
3.1.4 Preparation process of low temperature glass wrapped amorphous wire...........175
3.1.5 Key problems in the preparation of low temperature glass wrapped amorphous wire
.....................................................................................................................................180
3.1.6 Advantages of low temperature glass wrapping amorphous wire preparation
technology....................................................................................................................186
3.2 Study on GMI effect of low temperature glass wrapped FeCo base alloy fine wire
.....................................................................................................................................189
3.2.1 Study on the GMI effect of low temperature glass wrapped FeCo base alloy wire
.....................................................................................................................................191
3.2.2 Study on GMI effect of current annealing low temperature glass wrapped FeCo
base alloy filaments......................................................................................................195
3.2.3 Summary of this chapter.....................................................................................198
3.3 SEM morphology analysis of cross-section of low temperature glass wrapped FeCo
base alloy wire.............................................................................................................202
3.3.1 SEM morphology analysis of the cross-section of low temperature glass wrapped FeCo
base alloy wire after temperature annealing ..................................................................203
3.3.2 SEM morphology analysis of current annealed low temperature.......................206
3.3.3 Summary of this chapter.....................................................................................208
3.4 Study on “spike” giant magnetic impedance effect...............................................210
3.4.1 TGMI effect and its characterization ..................................................................211
3.4.2 Influence of annealing temperature on TGMI effect...........................................212
3.4.3 Influence of current density on TGMI effect ......................................................214
3.4.4 Influence of drive current frequency on TGMI effect of temperature annealed
samples.........................................................................................................................215
3.4.5 Influence of drive current frequency on TGMI effect of current annealed samples
.....................................................................................................................................217
3.4.6 Summary of this chapter.....................................................................................219
3.5 Study on the low temperature resistance characteristics of FeCo base alloy fine wire
wrapped in low temperature glass.................................................................................230
3.5.1 Theory of electrical transport in amorphous alloys ............................................231
3.5.2 Influence of heat treatment on the low temperature resistance of low temperature glass
wrapped FeCo base alloy wire .......................................................................................233
3.5.3 Fitting of resistance temperature relationship curve...........................................239
3.5.4 Summary of this chapter.....................................................................................244
Chapter 4 Research on amorphous absorbing materials............................249
4.1 Preparation of amorphous magnetic materials......................................................249
4.1.1 Preparation of amorphous thin band...................................................................249
4.1.2 Preparation of amorphous powder......................................................................252
4.2 Study on the absorbing properties of CoFeBSiNb amorphous powder ................253
4.2.1 Sample preparation and analysis.........................................................................253
4.2.2 Influence of the mass fraction of absorber on absorption performance..............258
Chapter 1 Introduction
4.2.3 Influence of pH value on absorption performance ...........................................266
4.2.4 Influence of corrosion time on absorption performance.....................................271
4.2.5 Influence of graphene composites on absorptive performance...........................275
4.2.6 Summary.............................................................................................................283
4.3 FeSiBPC study on the absorptive properties of amorphous powder.....................286
4.3.1 Sample preparation and analysis.........................................................................286
4.3.2 Influence of the mass fraction of absorber on absorption performance..............290
4.3.3 Influence of pH value on absorption performance..............................................294
4.3.4 Influence of corrosion time on absorptive performance .....................................301
4.3.5 Summary.............................................................................................................313
4.4 Study on the absorptive properties of FeCoB amorphous powder........................317
4.4.1 Sample preparation and analysis.........................................................................317
4.4.2 Influence of the mass fraction of absorber on absorption performance..............320
4.4.3 Summary.............................................................................................................336
References.........................................................................................................341
1.1 History and development of bulk amorphous alloy ................................................1
1.2 Properties and applications of bulk amorphous alloy ............................................4
1.3 Formation mechanism of bulk amorphous alloy.....................................................9
1.3.1 Structural factors of large amorphous alloy formation......................................... 10
1.3.2 Thermodynamic factors for the formation of large amorphous alloys................. 12
1.3.3 Kinetic factors of large amorphous alloy formation............................................. 14
1.4 Evaluation parameters of amorphous formation ability..........................................15
1.4.1 Approximate glass transition temperature Trg...................................................... 15
1.4.2 Supercooled liquid phase region ∆Tx......................................................................................................................16
1.4.3 γ Parameters ......................................................................................................... 17
1.5 Preparation and post-treatment of amorphous wire ................................................19
1.5.1 Preparation method of amorphous alloy wire....................................................... 19
1.5.2 Treatment method of amorphous alloy crystallization ......................................... 25
1.5.3 Giant magnetic impedance effect.......................................................................... 31
1.6 Iron-based soft magnetic amorphous alloys............................................................38
1.6.1 Development and research status of FeCo based soft magnetic alloy.................. 38
1.6.2 Research status of Co-based amorphous alloy ..................................................... 43
1.6.3 Low temperature electrical transport properties of amorphous metals................. 44
1.7 Mechanism and research status of absorbing materials..........................................52
1.7.1 The birth and development of absorbing materials............................................... 52
1.7.2 Classification of absorbing materials.................................................................... 54
1.7.3 Loss mechanism of absorbing materials............................................................... 56
1.7.4 The principle of absorbing waves by absorbing materials.................................... 59
1.7.5 Research status of absorptive materials................................................................ 62
Chapter 2 Study on the formation ability and magnetic properties of cobalt-based
alloy amorphous materials................................................................................... 65
2.1 Influence of element adjustment on the formation ability of cobalt-based alloy
amorphous.....................................................................................................................65
2.1.1 Introduction........................................................................................................... 65
2.1.2 Experimental method............................................................................................ 66
2.1.3 Theoretical basis of element selection .................................................................. 67
2.1.4 Influence of B and Si element adjustment on the formation ability of CoFeBSiNb
alloy system amorphous................................................................................................. 71
2.1.5 Influence of Nb element adjustment on the formation ability of CoFeBSiNb alloy
system amorphous.......................................................................................................... 79
2.1.7 Summary of this chapter....................................................................................... 87
2.2 Analysis of cobalt-based alloy amorphous formation ability..................................89
2.2.1 Introduction........................................................................................................... 89
2.2.2 Analysis of free energy state of Co-Fe-B-Si-Nb alloy system amorphous........... 89
2.2.3 Analysis of non-crystalline crystallization process of Co-Fe-B-Si-Nb alloy system
....................................................................................................................................... 94
2.2.4 Critical cooling rate of Co-Fe-B-Si-Nb alloy system ........................................108
2.2.5 Summary of this chapter.....................................................................................115
2.3 Study on magnetic properties of cobalt-based bulk amorphous alloys.................116
2.3.1 Introduction.........................................................................................................116
2.3.2 Experimental method..........................................................................................118
2.3.3 Influence of element adjustment on magnetic properties of Co-Fe-B-Si-Nb alloy
system ..........................................................................................................................119
2.3.4 CoFeBSiNb Study on giant magnetic resistance effect of amorphous alloy ......125
2.3.5 Summary of this chapter.....................................................................................137
2.4 Influence of Mo element addition on the formation ability and properties of CoFeBSiNb alloy system amorphous.....................................................................................139
2.4.1 Introduction.........................................................................................................139
2.4.2 Influence of Mo element addition on the thermodynamic properties of CoFeBSiNb
alloy system .................................................................................................................139
2.4.3 Analysis of the formation ability of amorphous alloy system ...........................141
2.4.4 Analysis of magnetic and mechanical properties of CoFeBSiNbMo alloy system
.....................................................................................................................................147
2.4.5 Summary of this chapter.....................................................................................155
Chapter 3. Study on low temperature glass wrapping amorphous wire ....159
3.1 Study on the preparation process of low temperature glass wrapped amorphous
alloy wire.....................................................................................................................159
3.1.1 Development history of glass wrapped amorphous wire....................................160
3.1.2 Preparation principle of low temperature glass wrapped amorphous wire.........165
3.1.3 Low temperature glass wrapping amorphous wire preparation device ..............169
3.1.4 Preparation process of low temperature glass wrapped amorphous wire...........175
3.1.5 Key problems in the preparation of low temperature glass wrapped amorphous wire
.....................................................................................................................................180
3.1.6 Advantages of low temperature glass wrapping amorphous wire preparation
technology....................................................................................................................186
3.2 Study on GMI effect of low temperature glass wrapped FeCo base alloy fine wire
.....................................................................................................................................189
3.2.1 Study on the GMI effect of low temperature glass wrapped FeCo base alloy wire
.....................................................................................................................................191
3.2.2 Study on GMI effect of current annealing low temperature glass wrapped FeCo
base alloy filaments......................................................................................................195
3.2.3 Summary of this chapter.....................................................................................198
3.3 SEM morphology analysis of cross-section of low temperature glass wrapped FeCo
base alloy wire.............................................................................................................202
3.3.1 SEM morphology analysis of the cross-section of low temperature glass wrapped FeCo
base alloy wire after temperature annealing ..................................................................203
3.3.2 SEM morphology analysis of current annealed low temperature.......................206
3.3.3 Summary of this chapter.....................................................................................208
3.4 Study on “spike” giant magnetic impedance effect...............................................210
3.4.1 TGMI effect and its characterization ..................................................................211
3.4.2 Influence of annealing temperature on TGMI effect...........................................212
3.4.3 Influence of current density on TGMI effect ......................................................214
3.4.4 Influence of drive current frequency on TGMI effect of temperature annealed
samples.........................................................................................................................215
3.4.5 Influence of drive current frequency on TGMI effect of current annealed samples
.....................................................................................................................................217
3.4.6 Summary of this chapter.....................................................................................219
3.5 Study on the low temperature resistance characteristics of FeCo base alloy fine wire
wrapped in low temperature glass.................................................................................230
3.5.1 Theory of electrical transport in amorphous alloys ............................................231
3.5.2 Influence of heat treatment on the low temperature resistance of low temperature glass
wrapped FeCo base alloy wire .......................................................................................233
3.5.3 Fitting of resistance temperature relationship curve...........................................239
3.5.4 Summary of this chapter.....................................................................................244
Chapter 4 Research on amorphous absorbing materials............................249
4.1 Preparation of amorphous magnetic materials......................................................249
4.1.1 Preparation of amorphous thin band...................................................................249
4.1.2 Preparation of amorphous powder......................................................................252
4.2 Study on the absorbing properties of CoFeBSiNb amorphous powder ................253
4.2.1 Sample preparation and analysis.........................................................................253
4.2.2 Influence of the mass fraction of absorber on absorption performance..............258
Chapter 1 Introduction
4.2.3 Influence of pH value on absorption performance ...........................................266
4.2.4 Influence of corrosion time on absorption performance.....................................271
4.2.5 Influence of graphene composites on absorptive performance...........................275
4.2.6 Summary.............................................................................................................283
4.3 FeSiBPC study on the absorptive properties of amorphous powder.....................286
4.3.1 Sample preparation and analysis.........................................................................286
4.3.2 Influence of the mass fraction of absorber on absorption performance..............290
4.3.3 Influence of pH value on absorption performance..............................................294
4.3.4 Influence of corrosion time on absorptive performance .....................................301
4.3.5 Summary.............................................................................................................313
4.4 Study on the absorptive properties of FeCoB amorphous powder........................317
4.4.1 Sample preparation and analysis.........................................................................317
4.4.2 Influence of the mass fraction of absorber on absorption performance..............320
4.4.3 Summary.............................................................................................................336
References.........................................................................................................341
Huaijun Sun, professor at Jiyang College of Zhejiang Agriculture and Forestry University, visiting scholar at U.S. Ames National Laboratory, Ph.D. from Chinese Academy of Sciences, majoring in material physics and chemistry, with a focus on amorphous alloys and material simulation. He has published more than 30 SCI journal papers, presided over and participated in four national-level projects, two provincial-level projects, and authorized five invention patents.
Worldcat: https://www.worldcat.org/
Ebsco: https://research.ebsco.com/
Crossref: 10.32629/9798959137595