Determination of Grain Boundary Diffusion Parameters Based on Combined Analysis of Radiotracer Technique and Mössbauer Spectroscopy Data

2012 ◽  
Vol 323-325 ◽  
pp. 155-160 ◽  
Author(s):  
Vladimir V. Popov
Keyword(s):  
Mössbauer Spectroscopy ◽  
Grain Boundary ◽  
Boundary Diffusion ◽  
Mossbauer Spectroscopy ◽  
Grain Boundary Diffusion ◽  
Spectroscopy Data ◽  
Radiotracer Technique ◽  
Combined Analysis ◽  
Mößbauer Spectroscopy

A method of grain boundary diffusion characterization has been suggested based on combined analysis of radiotracer serial-sectioning technique and Mössbauer spectroscopy data and a specified model of grain boundary diffusion. Its application for determination of parameters of Co grain boundary diffusion in W is demonstrated.

Determination of Grain Boundary Diffusion Parameters Based on Specified Model of Grain Boundary Diffusion and Combined Analysis of Radiotracer and Mössbauer Spectroscopy Data

2015 ◽  
Vol 5 ◽  
pp. 21-39 ◽  
Author(s):  
Vladimir V. Popov ◽  
A.V. Sergeev
Keyword(s):  
Grain Boundary ◽  
Boundary Diffusion ◽  
Grain Boundary Diffusion ◽  
Model Specification ◽  
Radiotracer Technique ◽  
Combined Analysis ◽  
Additional Information ◽  
Diffusion Parameters ◽  
Fisher Model

The classical Fisher model of grain-boundary diffusion and the traditional method of determination of grain-boundary diffusion parameters by radiotracer technique combined with the serial-sectioning method are analyzed. The Fisher model specification based on the data of the emission Mössbauer spectroscopy is considered, and the additional information which can be extracted from the Mössbauer studies is discussed. The possibility of determination of grain-boundary diffusion parameters based on the combined analysis of the radiotracer technique and Mössbauer spectroscopy with the application of the specified Fisher model of grain-boundary diffusion is considered. This approach is demonstrated by an example of determination of grain-boundary diffusion of Co in W and Mo.

Determination of grain-boundary diffusion of Ag in nanocrystalline Cu by the Hwang–Balluffi method

2001 ◽  
Vol 89 (7) ◽  
pp. 3971-3975 ◽  
Author(s):  
Z. Erdélyi ◽  
Ch. Girardeaux ◽  
G. A. Langer ◽  
D. L. Beke ◽  
A. Rolland ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Boundary Diffusion ◽  
Grain Boundary Diffusion

Local heterogeneity in the distribution of iron ions in CR-spinel from Ural ultramafic massifs: Evidence from Mössbauer spectroscopy data

2010 ◽  
Vol 52 (7) ◽  
pp. 669-678
Author(s):  
S. L. Votyakov ◽  
V. P. Suetin ◽  
V. P. Lyutoev ◽  
A. Yu. Lysyuk ◽  
A. B. Mironov ◽  
...  
Keyword(s):  
Mössbauer Spectroscopy ◽  
Mossbauer Spectroscopy ◽  
Iron Ions ◽  
Spectroscopy Data ◽  
Mößbauer Spectroscopy ◽  
Local Heterogeneity

Applications of 61Ni Mössbauer spectroscopy

1987 ◽  
Vol 65 (10) ◽  
pp. 1294-1300 ◽  
Author(s):  
C. A. McCammon
Keyword(s):  
Mössbauer Spectroscopy ◽  
Experimental Method ◽  
Mossbauer Spectroscopy ◽  
Hyperfine Interactions ◽  
Electronic Transitions ◽  
Spin Structures ◽  
Mössbauer Studies ◽  
Mößbauer Spectroscopy

The number of 61Ni Mössbauer studies, although small, indicates that definitive measurements are possible once experimental obstacles have been overcome. The experimental method and hyperfine interactions in 61Ni are discussed briefly, followed by a review of results obtained from 61Ni Mössbauer experiments during the last 10 years. The results are discussed in relation to the determination of spin structures, the study of electronic transitions, and the study of hyperfine interactions.

scholarly journals Investigation of phase transformations of iron nanoparticles during thermal annealing

2019 ◽  
Vol 201 ◽  
pp. 02003
Author(s):  
Dinara Tulebayeva ◽  
Assel Yermekova ◽  
Artem Kozlovskiy ◽  
Maxim Zdorovets
Keyword(s):  
Mössbauer Spectroscopy ◽  
Iron Oxide ◽  
Phase Transformations ◽  
Mossbauer Spectroscopy ◽  
Spectroscopy Data ◽  
X Ray Diffraction ◽  
Mößbauer Spectroscopy ◽  
Structure Of Nanoparticles ◽  
Subsequent Phase ◽  
Annealing Defects

Structural properties and phase composition of nanoparticles based on iron oxide were studied. Mossbauer spectroscopy, X-ray diffraction, and scanning electron microscopy were used for the analysis of phase transformations. According to XRD and Mossbauer spectroscopy data, an increase in the annealing temperature, as well as the subsequent phase transformations of magnetite into maghemite and then to hematite, indicate an improvement in the structure and a decrease in microdistortions in the lattice as a result of annealing defects and vacancies. According to Mossbauer spectroscopy data at temperatures above 400°C, the lines of characteristic FeO, which are characteristic for disordered iron oxide, are observed, which also confirms the improvement of the crystal structure of nanoparticles.

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