Study of the crystallization kinetics in amorphous Fe73.5Cu1Nb3Si13.5B9 alloy

Cserei, A.; Jiang, Jianzhong; Aubertin, F.; Gonser, U.

doi:10.1007/bf00975066

Cited by 32 publications

(24 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These two approaches are not able to account for the complex behaviors commonly observed in experimental transformed fraction curves of primary crystallization. 11,[23][24][25] As already stated, the analysis of primary crystallization is commonly performed using Eqs. ͑11͒ and ͑12͒, where the transformed fractions x͑t͒ and x͑t͒ are substituted by ͑t͒ and ͑t͒.…”

Section: Actual Kinetics Of Primary Crystallizationmentioning

confidence: 99%

See 1 more Smart Citation

On the validity of Avrami formalism in primary crystallization

Bruna

Crespo

González-Cinca

et al. 2006

Journal of Applied Physics

View full text Add to dashboard Cite

Articles you may be interested in Molecular dynamics of polymer crystallization revisited: Crystallization from the melt and the glass in longer polyethylene J. Chem. Phys. 139, 054903 (2013) Calorimetric data of primary crystallization is usually interpreted in the framework of the Kolmogorov ͓Dokl. Akad. Nauk SSSR 1, 355 ͑1937͔͒, Johnson and Mehl ͓Trans. AIME 135, 416 ͑1939͔͒, and Avrami ͓J. Chem. Phys. 7, 1103 ͑1939͒; 8, 212 ͑1940͒; 9, 177 ͑1941͔͒ ͑KJMA͒ theory. However, while the KJMA theory assumes random nucleation and exhaustion of space by direct impingement, primary crystallization is usually driven by diffusion-controlled growth with soft impingement between the growing crystallites. This results in a stop of the growth before the space is fully crystallized and induces nonrandom nucleation. In this work, phase-field simulations are used to check the validity of different kinetic models for describing primary crystallization kinetics. The results show that KJMA theory provides a good approximation to the soft-impingement and nonrandom nucleation effects. Moreover, these effects are not responsible of the slowing down of the kinetics found experimentally in the primary crystallization of glasses.

show abstract

Section: Actual Kinetics Of Primary Crystallizationmentioning

confidence: 99%

“…Frequently, complex behavior and unusual low values of the Avrami exponent are reported. [23][24][25] Figure 1 shows an experimental determination of n͑͑t͒͒ from Ref. 11 where the Avrami exponent varies from n Ӎ 4 at the initial stages of the transformation to n Ͻ 1 at the final stages.…”

mentioning

confidence: 99%

On the validity of Avrami formalism in primary crystallization

Bruna

Crespo

González-Cinca

et al. 2006

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…In the case of as-quenched amorphous FINEMET, irradiation induced changes in the direction of magnetisation have already been shown due to 593 MeV Au ion irradiation [4]. Earlier investigations [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] on FINEMET involved Mössbauer spectroscopy, too.…”

Section: Introductionmentioning

confidence: 97%

Mössbauer study of FINEMET type nanocrystalline ribbons irradiated with swift heavy ions

et al. 2011

View full text Add to dashboard Cite

As-quenched and stress field annealed FINEMET ribbons were irradiated with 246 MeV energy Kr, 470 MeV energy Xe and 720 MeV energy Bi ions and investigated by 57 Fe Mössbauer spectroscopy and XRD methods. The change in relative areas of the 2nd and 5th lines in the Mössbauer spectra indicated significant changes in the magnetic anisotropy of both as-quenched and stress annealed FINEMET due to irradiation with swift heavy ions. Differences were observed between the effect of irradiations with various ions having different energy and fluence. The effect of irradiation on the magnetic orientation in FINEMET was explained in terms of radiation induced defects. The swift heavy ion irradiation can be applied to produce FINEMET ribbons with more favorable soft magnetic properties for technological applications.

show abstract

“…In the studies on the crystallization kinetics of Finemet alloys, Johnson-Mehl-Avrami (JMA) kinetics equation (or JMA based equations) was generally assumed [8][9][10][11][12][13][14][15][16][17][18]. Although a number of papers relating to this have been published, an unique explanation is not reached yet.…”

Section: Introductionmentioning

confidence: 99%