scholarly journals Promoted crystallisation and cationic ordering in thermoelectric Cu26V2Sn6S32 colusite by eccentric vibratory ball milling

2020 ◽  
Vol 49 (44) ◽  
pp. 15828-15836
Author(s):  
Michal Hegedüs ◽  
Marcela Achimovičová ◽  
Hongjue Hui ◽  
Gabin Guélou ◽  
Pierric Lemoine ◽  
...  
Keyword(s):  
Mössbauer Spectroscopy ◽  
Ball Milling ◽  
Milling Time ◽  
Mossbauer Spectroscopy ◽  
Powerful Technique ◽  
Mößbauer Spectroscopy ◽  
The Impact ◽  
Ball Milling Time

The impact of eccentric vibratory ball milling time on the crystallisation of thermoelectric Cu26V2Sn6S32 is addressed. Mössbauer spectroscopy is confirmed as a powerful technique to investigate local cationic order/disorder in ball-milled colusites.

Ball Milling of the β-FeSi2 Phase

2008 ◽  
Vol 587-588 ◽  
pp. 410-414
Author(s):  
Benilde F.O. Costa ◽  
Gerard Le Caër ◽  
M. Ramos Silva
Keyword(s):  
Mössbauer Spectroscopy ◽  
Ball Milling ◽  
Ball Mill ◽  
Milling Time ◽  
Mossbauer Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Mößbauer Spectroscopy

A β-FeSi2 sample was ball-milled for different periods in a vibratory ball-mill and studied by X-ray diffraction and Mössbauer spectroscopy. It transforms gradually with milling time into an α-FeSi2 phase.

Microstructure Evolution and Mossbauer Spectroscopy Research of Nanostructured Ni3 Fe Intermetallic

2021 ◽  
Vol 32 ◽  
pp. 1-13
Author(s):  
Amel Kaibi ◽  
Abderrahim Guittoum ◽  
Nassim Souami ◽  
Mohamed Kechouane
Keyword(s):  
Magnetic Field ◽  
Mössbauer Spectroscopy ◽  
Mössbauer Spectra ◽  
Milling Time ◽  
Mossbauer Spectroscopy ◽  
Hyperfine Magnetic Field ◽  
X Ray Diffraction ◽  
X Ray ◽  
Mossbauer Spectra ◽  
Mößbauer Spectroscopy

Nanocrystalline Ni75Fe25 (Ni3Fe) powders were prepared by mechanical alloying process using a vario-planetary high-energy ball mill. The intermetallic Ni3Fe formation and different physical properties were investigated, as a function of milling time, t, (in the range 6 to 96 h range), using X-Ray Diffraction (XRD) and Mössbauer Spectroscopy techniques. X-ray diffraction were performed on the samples to understand the structural characteristics and get information about elements and phases present in the powder after different time of milling. The refinement of XRD spectra revealed the complete formation of fcc Ni (Fe) disordered solid solution after 24 h of milling time, the Fe and Ni elemental distributions are closely correlated. With increasing the milling time, the lattice parameter increases and the grains size decreases. The Mössbauer experiments were performed on the powders in order to follow the formation of Ni3Fe compound as a function of milling time. From the adjustment of Mössbauer spectra, we extracted the hyperfine parameters. The evolution of hyperfine magnetic field shows that the magnetic disordered Ni3Fe phase starts to form from 6 h of milling time and grow in intensity with milling time. For the milling time more than 24 h, only the Ni3Fe disordered phase is present with a mean hyperfine magnetic field of about 29.5 T. The interpretation of the Mossbauer spectra confirmed the results obtained by XRD.

scholarly journals Mössbauer spectroscopy study of the synthesis of SnFe2O4by high energy ball milling (HEBM) of SnO and α-Fe2O3

2010 ◽  
Vol 217 ◽  
pp. 012087 ◽  
Author(s):  
Oswald N C Uwakweh ◽  
Richard Pérez Moyet ◽  
Rita Mas ◽  
Carolyn Morales ◽  
Pedro Vargas ◽  
...  
Keyword(s):  
Mössbauer Spectroscopy ◽  
Ball Milling ◽  
Mossbauer Spectroscopy ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Spectroscopy Study ◽  
Mößbauer Spectroscopy ◽  
Energy Ball

scholarly journals An X-ray Diffraction and Mössbauer Spectroscopy Study of the Reaction between Hematite and Aluminum Activated by Ball Milling

1998 ◽  
Vol 53 (5) ◽  
pp. 239-244 ◽  
Author(s):  
Giorgio Concas ◽  
Anna Corrias ◽  
Enrico Manca ◽  
Giaime Marongiu ◽  
Giorgio Paschina ◽  
...  
Keyword(s):  
Mössbauer Spectroscopy ◽  
Ball Milling ◽  
Mossbauer Spectroscopy ◽  
Low Energy ◽  
Al Alloy ◽  
Spectroscopy Study ◽  
X Ray Diffraction ◽  
Powder Mixtures ◽  
X Ray ◽  
Mößbauer Spectroscopy

Abstract The reaction between hematite and aluminum in presence of allumina as diluent activated by Ball Milling powder mixtures in different energetic conditions has been investigated. To this purpose, the powders at different milling times have been characterized by X-ray Diffraction and Mössbauer Spectroscopy. A self-substained combustion reaction was observed when the strongest energetic conditions of milling were adopted. The intermediate products of the reaction also depend on the energetic conditions: the formation of hercynite is favoured by the use of strong energetic conditions while the formation of an Fe-Al alloy was observed when a low energy per single hit is transferred to the powders.

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