Structural investigation of the high-energy milled Fe–Si system

Števulová, Nadežda; Buchal, A.; Petrovič, P.; Tkáčová, K.; Šepelák, V.

doi:10.1016/s0304-8853(99)00224-3

Cited by 22 publications

(12 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2) of the peak (2 1 1) B2 to the peak (1 1 0) A2 decreases gradually from 13.5% before milling to 6.5% at 10 h of milling, there is a probable transformation of the ordered B2 phase to a disordered A2 phase. This effect has previously been reported for the FeSi (with 12 at.% of silicon) alloy [10].…”

Section: Evolution Of Grains Size Internal Strain and Lattice Parammentioning

confidence: 61%

Study of nanocrystalline FeSi alloys prepared by mechanical alloying

Bensebaa

Bouzabata

Otmani

2009

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Section: Evolution Of Grains Size Internal Strain and Lattice Parammentioning

confidence: 61%

Study of nanocrystalline FeSi alloys prepared by mechanical alloying

Bensebaa

Bouzabata

Otmani

2009

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…The higher solubility (i.e., higher chemical activity) of the Si may be linked to the imperfect structure of the Si, which is in an amorphous state. Phenomena similar to Si amorphization were observed not only in the milling of polycrystalline Si [17,18] but also in the mechanochemical synthesis of iron silicides [5,10]. Amorphous Si formed by milling was concentrated on the surface of particle [18,19].…”

Section: Resultsmentioning

confidence: 90%

“…For example, the first stage of phase transformation during MA in an Fe-Si system seems to be associated with crystalline-to-amorphous transition of Si [10]. The disappearance of XRD peaks of constituent elements after MA may not be attributed only to the chemical reaction between elemental powders; This phenomenon may be due to the formation of a supersaturated solid solution or an amorphous phase and may also be associated with the lower atomic scattering factors of elements with lower atomic numbers [11].…”

Section: Introductionmentioning

confidence: 98%

“…In examining phase analysis results by the X-ray diffraction (XRD) method from the literature [5,7,8,10], it could be seen that phase transition behavior of component elements during MA is complicated. For example, the first stage of phase transformation during MA in an Fe-Si system seems to be associated with crystalline-to-amorphous transition of Si [10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phase analysis of the mechanically alloyed Fe−Si powder by differential dissolution technique

et al. 2003

View full text Add to dashboard Cite

The binary Fe-Si elemental powders mixture (1:2 in atomic proportion) has been milled for different milling times in an attrition mill. The phase characterization of mechanically alloyed powder was investigated using the chemical method of differential dissolution (DD) and the X-ray diffraction (XRD) method. In powder specimens milled for more than 15 hr, ε-FeSi and unreacted Si were observed. The formation of a supersaturated solid solution of Si in ε-FeSi induced by mechanical alloying (MA) was also verified. The lattice parameter of the ε-FeSi of as-milled powders changed from 4.4876 Å to 4.4668 Å according to the increase of MA time. Based on the results of the DD analysis, unreacted Si could be classified as (1) crystalline Si, (2) Si supersaturated in ε-FeSi, or (3) amorphous Si. Therefore formation of the β-FeSi 2 after annealing could be explained by the reaction between the ε-FeSi and the Si classified into types (1) and (2). It seemed that the amorphous Si induced by MA did not react with the ε-FeSi during annealing at 700 o C.

show abstract

“…The published data [4,5,[33][34][35][36][37][38] carry inference that the most stable intermetallic compound (ε-FeSi) is formed at the first stage. Up to the concentration of 32 at.% Si [4,5,33], the supersaturated solid solution (SSS) is formed at the second stage.…”

Section: Mechanical Alloying Of Fe-si Mixturesmentioning

confidence: 97%

Nanostructure and Phases Formation under Mechanical Alloying of Bynary Powder Mixtures of Fe and sp-Element (M); M = C,B,Al,Si,Ge,Sn

Yelsukov¹,

Дорофеев²

2006

Hyperfine Interact

View full text Add to dashboard Cite

The processes of mechanical alloying of iron and sp-elements (C, B, Al, Si, Ge, Sn) under identical conditions of mechanical treatment have been studied. General regularities and differences in the mechanisms and kinetics of solid state reactions have been ascertained. A microscopic model of mechanical alloying in these systems is suggested.Key words mechanical alloying · iron and sp-elements · solid state reactions · mechanisms · kinetics.

show abstract

Structural investigation of the high-energy milled Fe–Si system

Cited by 22 publications

References 5 publications

Study of nanocrystalline FeSi alloys prepared by mechanical alloying

Study of nanocrystalline FeSi alloys prepared by mechanical alloying

Phase analysis of the mechanically alloyed Fe−Si powder by differential dissolution technique

Nanostructure and Phases Formation under Mechanical Alloying of Bynary Powder Mixtures of Fe and sp-Element (M); M = C,B,Al,Si,Ge,Sn

Contact Info

Product

Resources

About