Effect of structural transformations preceding crystallization on functional properties of Fe73.5Cu1Nb3Si15.5B7 amorphous alloy

Maricic, A.; Minić, Dušan M.; Blagojević, Vladimir A.; Kalezić-Glišović, Aleksandra; Minić, Duško

doi:10.1016/j.intermet.2011.09.009

Cited by 15 publications

(9 citation statements)

References 29 publications

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“…In our earlier paper (MARIČIĆ et al, 2012) the results of thermal and thermoelectric measurements were shown for this alloy. Fig.…”

Section: Resultsmentioning

confidence: 82%

“…Fig. 1 shows temperature dependence of electrical resistivity and DSC thermogram of the AMA Fe73.5Cu1Nb3Si15.5B7 (MARIČIĆ et al, 2012). The presented temperature dependence of electrical resistivity of as-cast alloy shows all the structural changes that occur within the investigated temperature interval.…”

Section: Resultsmentioning

confidence: 90%

“…Intensive researches on kinetic features of amorphous alloys show correlation between the physical nature of the anomalous behavior of electron state density near Fermi level, thermal conductivity, heat capacity and resistivity on the one hand and structural inhomogeneities in these materials on the other (RIBIĆ-ZELENOVIĆ et al, 2008; KALEZIĆ-GLIŠOVIĆ, 2012; MARIČIĆ et al, 2012]. At temperatures of up to 100ºC lower than the crystallization temperature, two competitive processes take place during annealing of amorphous alloys: on the one hand, free volume decreases, which lowers the rate of diffusion mass transport, and on the other hand, arranging processes bring the alloy closer to the crystallized state.…”

Section: Introductionmentioning

confidence: 99%

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The correlation between structural relaxation process and the change in magnetic permeability of the Fe73.5Cu1Nb3Si15.5B7 amorphous alloy under the thermal influence

Kalezić-Glišović¹,

Mitrović²,

Maricic³

2017

Kragujevac J Sci

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ABSTRACT. Fast cooling of 10 6 K/s, according to the melt-spinning method, led to the Fe73.5Cu1Nb3Si15.5B7 amorphous alloy formation. X-ray diffraction analysis method (XRD) showed that the obtained alloy is in amorphous state. The differential scanning calorimetry method (DSC) has defined the temperature interval of the crystallization process to be from 510ºC to 540ºC. The same temperature interval has also been confirmed by measuring electrical resistivity dependence over temperature. The heating of alloy sample in the temperature interval from 25ºC to 600ºC, leads to structural changes in the alloy under the thermal influence. Structural relaxation and crystallization processes have been investigated by thermoelectromotive force measurement (TEMF) of thermocouple amorphous alloy -copper. Based on the change in temperature coefficient of TEMF thermocouple annealed at various temperatures, relative changes in electron state density near Fermi level have been determined. It has been shown that the changes in normalized magnetic permeability in correlation with appropriate structural changes, which cause changes in electron state density near Fermi level.

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“…In our earlier paper (MARIČIĆ et al, 2012) the results of thermal and thermoelectric measurements were shown for this alloy. Fig.…”

Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The correlation between structural relaxation process and the change in magnetic permeability of the Fe73.5Cu1Nb3Si15.5B7 amorphous alloy under the thermal influence

Kalezić-Glišović¹,

Mitrović²,

Maricic³

2017

Kragujevac J Sci

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“…Materials like this are characterized by a microstructure of nanocrystals embedded into an amorphous matrix, exhibiting superior soft magnetic and mechanical properties to both amorphous and crystalline magnetic alloys Minić et al, 2011a). This dependence of functional properties on microstructure can be used to produce functional materials with tailored properties (Maričić et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Fe-Based Nanocomposite Formed by Thermal Treatment of Rapid-Quenched Fe81B13Si4C2 Alloy

Minić¹,

Blagojević²,

Minić³

2012

Crystallization - Science and Technology

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“…e Relacija (71) je kvantni analog relacije (68). Vidi se da je i ovde unutrašnja kontaktna razlika potencijala posledica razlike koncentracija elektronskih gasova provodnih materijala u kontaktu.…”

Section: Termoelektrična Svojstvaunclassified

The structural relaxation effect on functional properties of Fe - based amorphous alloys

Kalezić-Glišović¹

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REZIMEIspitivan je uticaj strukturnih promena izazvanih primenom spoljašnjih parametara (toplotno dejstvo, magnetno dejstvo, mehaničko naprezanje) u toku procesa strukturne relaksacije i kristalizacije na funkcionalna svojstva tri legure na bazi gvožđa, različitog hemijskog sastava: Strukturna stabilnost i strukturne transformacije legura ispitane su primenom difrakcije Xzraka. Pokazana je egzotermna termička stabilnost ispitivanih legura u temperaturskom intervalu od 20 0 C -700 0 C, primenom diferencijalne skanirajuće kalorimetrije (DSC). Ovaj temperaturski interval obuhvata relaksaciju deformisane strukture, gubitak feromagnetičnosti i konačno kristalizaciju, rekristalizaciju i rast kristala formiranih faza. Proces kristalizacije obuhvata formiranje različitih stabilnih i nestabilnih faza u zavisnosti od hemijskog sastava ispitivanih legura.Ispitana je kinetika procesa strukturne relaksacije ovih legura, pri različitim naprezanjima i temperaturama odgrevanja. Zatim je ispitan uticaj strukturne relaksacije na promenu gustine stanja elektrona na Fermi-evom nivou. Pokazano je da strukturne promene imaju velikog uticaja na električna i magnetna svojstva ovih legura. Utvrđeno je da relaksirana amorfna struktura legure poseduje znatno bolja električna i magnetna svojstva kako u odnosu na polaznu leguru, tako i u odnosu na iskristalisalu leguru sa stanovišta mogućnosti praktične primene. Takođe je ispitana i mogućnost primene ovih legura kao senzora sile.Uspostavljena je jasna korelacija strukturne promene -funkcionalna svojstva i dato fundamentalno tumačenje međuzavisnosti strukturna relaksacija -promena gustine stanja elektrona na Fermi-evom nivou -električna svojstva -magnetna svojstva, što je i cilj ove disertacije.Ključne reči: amorfne metalne legure, melt-spinning, DSC, difrakcija X-zračenja, strukturna relaksacija, toplotno dejstvo, mehaničko naprezanje, električna svojstva, gustina stanja elektrona na Fermi-evom nivou, magnetna svojstva. were obtained by rapidly quenching of the melt on a rotating disk (melt-spinning technique). The samples were ribbon-shaped, 20 cm long, 2 mm wide and 3 μm thick.The structural stability and structural transformations of the alloys were investigated by Xray diffraction. Exothermal stability of the investigated alloys in the temperature range from 20 0 C to 700 0 C was determined, by the differential scanning calorimetry method (DSC). This temperature range presumes relaxation of deformed structure, the loss of ferromagnetic properties and finally crystallization, recrystallization and growth of the crystallites of formed phases. The crystallization process includes the formation of various stable and unstable phases depending on the chemical content of the investigated alloys. The kinetics of the structural relaxation process of these alloys

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Effect of structural transformations preceding crystallization on functional properties of Fe73.5Cu1Nb3Si15.5B7 amorphous alloy

Cited by 15 publications

References 29 publications

The correlation between structural relaxation process and the change in magnetic permeability of the Fe73.5Cu1Nb3Si15.5B7 amorphous alloy under the thermal influence

The correlation between structural relaxation process and the change in magnetic permeability of the Fe73.5Cu1Nb3Si15.5B7 amorphous alloy under the thermal influence

Fe-Based Nanocomposite Formed by Thermal Treatment of Rapid-Quenched Fe81B13Si4C2 Alloy

The structural relaxation effect on functional properties of Fe - based amorphous alloys

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