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Browsing by Subject "Mössbauer spectroscopy"

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Application of 57Fe Mössbauer spectroscopy as a tool for mining exploration of bornite (Cu5FeS4) copper ore

Gainov R.; Vagizov F.; Golovanevskiy V.; Ksenofontov V.; Klingelhöfer G.; Klekovkina V.; Shumilova T.; Pen'kov I. (2014)

Nuclear resonance methods, including Mössbauer spectroscopy,are considered as unique techniques suitable for remote on-line mineralogical analysis. The employment of these methods provides potentially significant commercial ...
Characterization of iron and cobalt based catalysts after aquathermolysis processes by mössbauer spectroscopy

Unknown author (2018)

© SGEM2018. Heavy crude oils are extracted mostly by thermal recovery methods which reduce viscosity of heavy oil due to destruction of associative bonds in a complex oil fluid. In a number of articles, it is proved that ...
Coloration of natural beryl by iron ion implantation

Khaibullin R.; Lopatin O.; Vagizov F.; Bazarov V.; Bakhtin A.; Khaibullin I.; Aktas B. (2003)

Natural colorless crystals of Ural beryl were implanted at room temperature with 40 keV Fe+ ions with fluences in the range of 0.5-1.5×1017 ion/cm2. As-implanted samples show dark-grey tone due to radiation damage of beryl ...
Evidence of the Plaquette Structure of Fe<inf>1+x</inf>Te Iron Telluride: Mössbauer Spectroscopy Study

Kiiamov A.; Tagirov L.; Vagizov F.; Tayurskii D.; Krug von Nidda H.; Croitori D.; Tsurkan V.; Loidl A. (2019)

© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Single-crystalline Fe1+xTe iron telluride with off-stoichiometric iron has been synthesized by the Bridgman method. The X-ray diffraction and wave-length-dispersive X-ray ...
Experimental observation of vibrations produced by pulsed laser beam in MgO:57Fe

Vagizov F.; Kolesov R.; Olariu S.; Rostovtsev Y.; Kocharovskaya O. (2006)

We report the first observation of a laser-produced vibration with the aid of Mössbauer techniques. Thin platelets of MgO single crystals were doped by diffusion of 57Fe atoms. The illumination of the MgO: 57Fe sample with ...
Fe–B nanomaterials by mechanochemical synthesis: A Mössbauer study

Kutashova E.; Pyataev A.; Shkodich N.; Rogachev A.; Scheck Y. (2019)

© 2019 Elsevier B.V. The process of phase formation during short-term (80 and 120 min) high-energy ball milling of Fe84B16, Fe80B20, and Fe70B30 powder mixtures was studied by Mössbauer spectroscopy. Hyperfine field Bhf ...
Graphene Oxide/Iron Oxide (GrO/FeOx) Nanocomposites for Biomedicine: Synthesis and Study

Kamzin A.S.; Obaidat I.M.; Kozlov V.S.; Voronina E.V.; Narayanaswamy V.; Al-Omari I.A. (2021)

Abstract: The properties and structure of magnetic graphene oxide GrO/iron oxide FeOx nanocomposites synthesized by the mechanochemical method with different content of components GrO : FeOx (wt %), namely, 20 : 80, 50 : ...
In situ control of thermal activation conditions by color for serpentines with a high iron content

Ivanova T.K.; Kremenetskaya I.P.; Novikov A.I.; Semenov V.G.; Nikolaev A.G.; Slukovskaya M.V. (2021)

Serpentine heat treatment at temperatures of 650–750◦C yields magnesium–silicate reagent with high chemical activity. Precise and express control of roasting conditions in laboratory kilns and industrial aggregates is ...
Investigation of LPBF A800H steel parts using Computed Tomography and Mössbauer spectroscopy

Gainov R.; Faidel D.; Behr W.; Natour G.; Pauly F.; Willms H.; Vagizov F. (2020)

© 2020 Elsevier B.V. Laser powder bed fusion (LPBF) was applied in this study to produce a prototype of a miniaturized catalytic burner (CAB), which is a key component of high-temperature polymer electrolyte fuel cells. ...
Investigation of Structural-Phase Conversion of an Iron-Containing Catalyst by Mössbauer Spectroscopy (Part 2)

Mukhamatdinov I.I.; Pyataev A.V.; Zaripova R.D.; Khaidarova A.R.; Vakhin A.V. (2021)

The active form of an iron-containing catalyst, an Fe(II, III) mixed oxide, was studied by Mössbauer spectroscopy in order to identify the mechanism of formation of catalysts used for upgrading of heavy oil from Ashalchinsk ...
Investigation of thermal behavior of Fe(II,III)-containing borates

Biryukov Yaroslav; Zinnatullin Almaz Linarovich; Bubnova R. S.; Vagizov Farit Gabdulhakovich; Filatov S. K. (2020)

This work reports on the investigation of thermal behavior of Fe(II,III)-containing borates by in situ low- and high-temperature X-ray diffraction methods, Mössbauer spectroscopy and thermal analysis. A combination of ...
Magnetic granulometry and Mössbauer spectroscopy of Fe<inf>m</inf>O<inf>n</inf>–SiO<inf>2</inf> colloidal nanoparticles

Unknown author (2018)

© 2018 Elsevier B.V. The colloidal nanoparticles FemOn–SiO2 have been obtained using the sol–gel method. Based on the data obtained with transmission electron microscopy and dynamic light scattering, a lognormal size ...
Magnetic Granulometry and Mössbauer Spectroscopy of Synthetic Fe<inf>m</inf>O<inf>n</inf>-TiO<inf>2</inf> Composites

Kharitonskii P.; Kirillova S.; Gareev K.; Kamzin A.; Gurylev A.; Kosterov A.; Sergienko E.; Valiullin A.; Shevchenko E. (2020)

© 2020 IEEE. FemOn-TiO2 particle aggregates have been obtained using the sol-gel method and hydrothermal treatment. It is shown that the synthesis conditions favor forming composites that contain titanomagnetite in very ...
Magnetic properties and electronic structure of CeFe<inf>2−x</inf>Mn<inf>x</inf> and CeFe<inf>2</inf>Mn<inf>x</inf> compounds

Naumov S.P.; Mushnikov N.V.; Terentev P.B.; Gaviko V.S.; Kleinerman N.M.; Galakhov V.R.; Kuepper K.; Vagizov F.G. (2021)

The effect of manganese alloying on the structure and magnetic properties of CeFe2 has been studied on two isostructural series: quasibinary CeFe2−xMnx and nonstoichiometric CeFe2Mnx alloys. The single-phase bcc MgCu2-type ...
Magnetic properties of novel dendrimeric spin crossover iron(III) complex

Domracheva N.; Vorobeva V.; Pyataev A.; Tamura R.; Suzuki K.; Gruzdev M.; Chervonova U.; Kolker A. (2016)

© 2015 Elsevier B.V. All rights reserved. The synthesis and magnetic properties of novel dendrimeric spin crossover Fe(III) complex of formula [Fe(L)2]+PF6 -, where L = 3,5-di(3,4,5-tris(tetradecyloxy)benzoyloxy)benzoyl- ...
Mesoporous iron(Iii)-doped hydroxyapatite nanopowders obtained via iron oxalate

Goldberg M.A.; Gafurov M.R.; Murzakhanov F.F.; Fomin A.S.; Antonova O.S.; Khairutdinova D.R.; Pyataev A.V.; Makshakova O.N.; Konovalov A.A.; Leonov A.V.; Akhmedova S.A.; Sviridova I.K.; Sergeeva N.S.; Barinov S.M.; Komlev V.S. (2021)

Mesoporous hydroxyapatite (HA) and iron(III)-doped HA (Fe-HA) are attractive materials for biomedical, catalytic, and environmental applications. In the present study, the nanopowders of HA and Fe-HA with a specific surface ...
Mössbauer forward scattering spectra of ferromagnets in radio-frequency magnetic field

Dzyublik A.; Sadykov E.; Petrov G.; Arinin V.; Vagizov F.; Spivak V. (2012)

The transmission of Mössbauer radiation through a thick ferromagnetic crystal, subjected to the radio-frequency (rf) magnetic field, is studied. A quantum-mechanical dynamical scattering theory is developed, taking into ...
Mössbauer studies of Cu1-xNi xFeMnO4 spinel ferrites

Roumaih K.; Manapov R.; Sadykov E.; Pyataev A. (2005)

Nickel copper ferromanganites Cu1-xNi xFeMnO4 with the composition (0≤x≤1) have been prepared using a ceramic technique. A single phase of these compounds was confirmed by X-ray powder diffraction measurements. Mössbauer ...
Mössbauer Studies of Moulded Kama–Cis-Urals Ceramics

Valiulina S.; Pyataev A.; Ivanova A.; Manapov R.; Voronina E. (2018)

© 2018 University of Oxford The paper is devoted to the analysis of two genetically related groups of medieval traditional moulded ceramics, which in historical studies of the polyethnic Middle Volga and Kama region fulfil ...
Mössbauer study of bornite and chemical bonding in Fe-bearing sulphides

Borgheresi M.; Di Benedetto F.; Romanelli M.; Reissner M.; Lottermoser W.; Gainov R.; Khassanov R.; Tippelt G.; Giaccherini A.; Sorace L.; Montegrossi G.; Wagner R.; Amthauer G. (2017)

© 2017 Springer-Verlag GmbH Germany The Mössbauer spectra of a nearly stoichiometric natural bornite, Cu 5 FeS 4 , specimen were reinvestigated between 295 and 4.2 K. There is no difference between the Neél temperature T ...

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Browsing by Subject "Mössbauer spectroscopy"

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