ISIAME 2008 (eBook)

Preface 2
Mössbauer spectroscopy in molecular magnetism 4
1 Introduction 5
2 Bimetallic oxalate: magnetic interactions and spin glass state 6
3 Prussian Blue analog 7
4 Spin transition materials 10
5 Conclusion 18
References 18
Monitoring by Mössbauer spectroscopy the thermal reduction of hematite into magnetite: the surface effect and charge disproportionality in iron oxide nanoparticles 21
1 Introduction 22
3 Results and discussion 23
4 Conclusion 28
References 29
Iron in the brain 30
1 Introduction 30
2 Material and methods 31
3 Results and discussion 32
References 35
Analysis of powder particles of high carbon cast iron after air plasma spraying 37
1 Introduction 37
3 Results and discussion 39
4 Conclusions 42
References 42
Ion bombardment of Fe-based amorphous metallic alloys 43
1 Introduction 44
2 Experimental details 44
3 Results and discussion 45
4 Irradiation with gold 47
5 Conclusions 49
Sigma phase—one of the main reasons for deterioration of stainless steels properties 51
1 Introduction 51
2 Identification of the s-phase and kinetics of its formation 52
3 Determination of the Debye temperature 53
4 Determination of the Curie temperature 56
5 Summary 58
References 59
Chemical aspects of lifetime extension at Paks Nuclear Power Plant 60
1 The purpose and the function of the primary and secondary water regime 61
2 Analysis of the primary and secondary water regime currently applied for the Paks Units 61
3 Recommendations 64
References 68
Magnetic phase transitions in nanoclusters and nanostructures 69
1 Introduction 69
2 Isolated iron oxide nanoclusters 70
3 Iron oxide nanostructures in the beginning of sintering 71
4 Nanostructures induced by shear stress under high pressure action 75
5 Ordered cluster nanostructures based on iron oxides 77
6 Conclusions 79
References 80
Effect of particle size and alloying with different metals on Fe Mössbauer spectra 81
1 Introduction 81
2 Experimental 83
3 Results and discussion 84
4 Conclusion 90
References 90
Characterization of magnetic iron oxide nanoparticles 92
1 Introduction 92
2 Experimental 93
3 Results and discussion 96
4 Conclusions 97
References 98
Formation of graphite encapsulated iron nanoparticles during mechanical activation and annealing analyzed by Mössbauer spectroscopy 99
1 Introduction 99
2 Experimental 100
3 Results and discussion 100
4 Conclusion 104
References 104
Hydrogenation of FeCoZr–Al2O3 nanocomposites studied by Mössbauer spectroscopy and magnetometry 105
1 Introduction 105
2 Experimental 106
3 Results and discussion 106
4 Conclusions 111
References 111
Mössbauer study of rapidly solidified Al-Fe based amorphous alloys 112
1 Introduction 112
2 Experimental 113
3 Results and discussions 113
4 Conclusions 115
References 116
Integral low-energy electron Mössbauer spectroscopic studies of the surfaces of carbon nanotube-nanocomposite powders 117
1 Introduction 117
2 Experimental 119
3 Results and discussion 120
References 122
Microwave absorption and Mössbauer studies of FeO nanoparticles 123
1 Introduction 123
2 Experiment 124
3 Results and discussion 124
4 Conclusions 127
References 127
Studies of oxidation of iron nanowires encased in porous aluminium oxide template 129
1 Introduction 129
2 Experimental details 130
3 Results and discussion 131
4 Conclusions 133
References 134
Influence of Mn-for-Fe substitution on structural properties of synthetic goethite 135
1 Introduction 135
2 Experimental 136
3 Results and discussion 137
4 Conclusion 141
References 141
Synthesis and magnetic properties of Cu0.5Ni0.5Fe2O4 nanoparticles produced by glycothermal and hydrothermal processes 142
1 Introduction 142
2 Experimental 143
3 Results and discussions 145
4 Conclusions 149
References 149
Mössbauer spectroscopy study of iron oxide nanoparticles obtained by spray pyrolysis 150
1 Introduction 151
2 Experimental 151
3 Results and discussion 151
References 156
Solid-state synthesis of a-Fe and iron carbide nanoparticles by thermal treatment of amorphous Fe2O3 158
1 Introduction 158
2 Experimental 159
3 Results and discussion 160
4 Conclusion 163
References 163
ILEEMS of thin a-Fe2O3 films preparedby RF sputtering 165
1 Introduction 166
2 Experimental 166
3 Results and discussion 167
References 171
The Mössbauer spectroscopy studies of matrix changes during continuous heating from as-quenched state of high carbon tool steel 172
1 Introduction 172
2 Test material 173
3 Experimental procedure 173
4 Results and discussion 173
5 Conclusions 176
References 176
Mössbauer and magnetic studies of nanosize (Fe,Co)x C1-x alloys 178
1 Introduction 178
2 Experimental details 179
3 Experimental results 179
References 184
Ball milling induced interstitial atoms redistributions revealed by Mössbauer effect in Fe based alloys 185
1 Introduction and aim of the study 185
2 Experimental conditions and results 187
3 Discussion 189
4 Conclusion 191
References 191
Mössbauer spectroscopic investigation of retained-austenite content of high-carbon tool steel during isothermal tempering of as-quenched samples 193
1 Introduction 193
2 Test material 194
3 Experimental procedure 194
4 Results and discussion 194
5 Conclusions 197
References 197
Feature of solid–liquid metals reaction revealed by conversion electron Mössbauer spectrometry 199
1 Introduction 199
2 Experimental conditions and results 200
3 Discussion 204
4 Conclusions 205
References 205
Synthesis of Fe carbides species by reactive milling 207
1 Introduction 207
2 Experimental 208
3 Results and discussion 208
References 212
The fate of Fe3+ ions in the system {AlO(OH)-xerogel/ Fe-compounds} after mechanical activation and different thermal treatments studied by Mössbauer, ESR spectroscopy and thermal analysis 213
1 Introduction 213
2 Experimental 214
3 Results and discussion 215
4 Conclusions 219
References 219
Characterization of rapidly solidified powder of high-speed steel 220
1 Introduction 220
2 Experimental details 221
3 Results and discussion 221
4 Conclusions 225
References 226
Gummic acid stabilized .-Fe2O3 aqueous suspensionsfor biomedical applications 227
1 Introduction 227
2 Experimental 228
3 Results and discussion 229
4 Conclusion 233
References 233
Iron containing vitamins and dietary supplements: control of the iron state using Mössbauer spectroscopy with high velocity resolution 235
1 Introduction 235
2 Materials and methods 236
3 Results and discussion 237
4 Conclusion 241
References 242
Mobility of inorganic nanoparticles in soft matter 243
1 Introduction 243
2 Experimental and data evaluation 246
3 Results 247
4 Conclusion 252
References 253
Nanoscaled biocompatible magnetic drug-delivery system: preparation and characterization 254
1 Introduction 254
2 Experimental 255
3 Results and discussion 257
4 Conclusions 259
References 259
Mössbauer spectroscopic study of sulphonated poly(ether-urethane) linear ionomer doped with iron species 261
1 Introduction 262
2 Materials and methods 262
3 Results and discussion 263
4 Conclusions 265
References 266
Mössbauer characterisation of Fe–polygalacturonate as a medicine for human anaemia: the effect of iron concentration 267
1 Introduction 268
2 Experimental 269
3 Results and discussion 269
4 Conclusions 273
References 274
The characterisation of three different coal samples by means of various analytical techniques 275
1 Introduction 275
2 Experimental 276
3 Results and discussion 276
4 Conclusions 280
References 280
Mössbauer studies of raw materials from Misti volcano of Arequipa (Peru) for its potential application in the ceramic field 281
1 Introduction 282
2 Experimental 282
3 Results and discussion 283
4 Conclusion 285
References 285
Mössbauer study of Fe3+/Fe2+ ratio in amphiboles to search correlation with hydrogen isotope fractionation 286
1 Introduction 287
2 Experimental 287
3 Results 288
4 Discussion 290
5 Conclusions 291
References 292
Various stages of oxidation of chlorite as reflected in the Fe2+ and Fe3+ proportions in the Mössbauer spectra of minerals in Boda Claystone 293
1 Introduction 293
2 Experimental 294
3 Results 294
4 Discussion 297
References 297
Iron–nickel alloy from iron meteorite Chinga studied by Mössbauer spectroscopy with high velocity resolution 298
1 Introduction 298
2 Experimental 299
3 Results and discussion 299
4 Conclusion 304
References 304
Temperature dependence of the hyperfine parameters of the iron bearing phases in the Mössbauer spectra collected by the Mars Exploration Rover Spirit 306
1 Introduction 306
2 Experimental 307
3 Results and discussion 308
References 311
Mössbauer study of the Boom clay, a geological formation for the storage of radioactive wastes in Belgium 312
1 Introduction 312
2 Experimental 313
3 Results and discussion 313
References 320
Mössbauer effect study of fly and bottom ashes from an electric generating plant 321
1 Introduction 321
2 Experimental 322
3 Results and discussion 322
4 Conclusion 326
References 326
Iron Mössbauer redox and relation to technetium retention during vitrification 327
1 Introduction 327
2 Experimental 328
3 Results 329
References 333
57Fe Mossbauer study of sol.gel synthesized Sn1.x.yFexSbyO2.d powders 335
1 Introduction 336
2 Experimental 336
3 Results 337
4 Discussion 341
5 Conclusions 341
References 342
Exchange-spring magnets based on L10-FePt ordered phase 343
1 Introduction 343
2 Experimental procedure 344
3 Results and discussion 346
4 Conclusions 349
References 349
Mössbauer spectroscopy study of interfaces for spintronics 351
1 Introduction 351
2 Experimental details 352
3 Results and discussion 353
4 Conclusions 356
References 356
Study of rapid stress annealed nano-crystalline Fe74.5Cu1Nb3Si15.5B6 alloy 357
1 Introduction 358
2 Experimental 358
3 Results and discussions 360
4 Conclusions 362
References 363
Characterization of magnetic nano-fluids via Mössbauer spectroscopy 364
1 Introduction 364
2 Experimental 365
3 Results and discussion 365
4 Conclusions 369
References 369
Determination of foreign phases in Fe–As based superconducting systems 370
1 Introduction 370
2 Experimental details 371
3 Experimental results and discussion 371
4 Conclusions 374
References 374
Detailed Mössbauer study of the cation distribution in CoFe2O4 ferrites 375
1 Introduction 375
2 Materials and methods 376
3 Results and discussion 378
4 Conclusion 381
References 382
Substitution effect of Ba at the Sr sites in Sr(Fe,Re)O3 383
1 Introduction 383
2 Experimental 384
3 Results 384
4 Conclusion 387
References 387
Fe(II) spin-crossover compounds based on the extremely versatile ligand system of 1-substituted tetrazoles: a comparative study 389
1 Introduction 389
2 Results and discussion 390
References 394
Characterization of magnetite nanoparticles supported in sulfonated styrene-divinylbenzene mesoporous copolymer 395
1 Introduction 396
2 Experimental 396
3 Results and discussion 397
References 400
Origin of ferromagnetism in iron implanted rutile single crystals 402
1 Introduction 402
2 Experimental 403
3 Results and discussion 404
4 Summary 408
References 409
Magnetic phase transition of the bond random mixed compound Fe(BrxI1-x)2 410
1 Introduction 410
2 Experimental 411
3 Results and discussion 411
References 414
Effects of B and P content on structural and magnetic properties of cast iron based amorphous alloys 415
1 Introduction 416
2 Experimental 416
3 Results and discussions 416
4 Conclusions 419
References 419
Mössbauer study of Fe in GaAs following 57Mn+ implantation 420
1 Introduction 421
2 Experimental 421
3 Results and discussion 423
4 Conclusions 424
References 425
Iron films produced by an arc plasma gun 426
1 Introduction 426
2 Experimental 427
3 Results and discussion 428
4 Conclusions 431
References 432
Interface mixing in Fe–B–Ag multilayers 433
1 Introduction 433
2 Experimental 434
3 3 Results and discussion 434
4 Conclusion 437
References 438
Spin configurations and interfacial diffusion in exchange bias and spin valve systems with Ir–Mn antiferromagnetic pinning layers 439
1 Introduction 440
2 Experimental 440
3 Results and discussion 441
4 Conclusions 444
References 445
Interfacial microstructure and properties of dissimilar steels joined by high energy beam melting processes 446
1 Introduction 446
2 Experimental 447
3 Results and discussion 448
4 Conclusions 452
References 453
Iron oxide modified minerals 454
1 Introduction 454
2 Materials and methods 455
3 Results and discussion 456
4 Conclusions 459
References 459
Nano-structure analysis of Fe implanted SnO2 films by 57Fe and 119Sn CEMS 461
1 Introduction 461
2 Experimental 462
3 Results 462
4 Conclusions 466
References 467
Surface effects in a-Fe2O3 nanoparticles studied by ILEEMS and TMS 468
1 Introduction 468
2 Experimental 469
3 Results and discussion 469
4 Conclusions 471
References 472
The structure and composition of novel electrodeposited Sn–Fe and Sn–Co–Fe alloys from a flow circulation cell system 473
Study of Au/SnOx–Al2O3 catalysts used in CO oxidation by in situ Mössbauer spectroscopy 485
Comparison of Fe-AlPILC and Fe-ZSM-5 catalysts used for degradation of methomyl 494
Dissolution behaviour of iron silicate glass 501
Structural studies of iron in vitrified toxic wastes 507
Formation and characterization of boride coatings thermochemically grown on the Fe64Ni36 alloy 513
Characterization of initial atmospheric corrosion of conventional weathering steels and a mild steel in a tropical atmosphere 520
Mössbauer and infrared spectroscopy as a diagnostic tool for the characterization of ferric tannates 529
Failure analysis of magnets in a servomotor by Mössbauer and X-ray diffraction 536
The method of invariants applied to the analysis of 57Fe Mössbauer spectra 543
A versatile gas-flow proportional counter for Mössbauer spectroscopy 550