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1.
Инвентарный номер: нет.
   
   A 26


   
    Агрегативная устойчивость коллоидно-дисперсной системы наночастицы CdS-H2O в присутствии поверхностно-активных веществ [] = Aggregative Stability of Colloidal Disperse System "Nanoparticles CdS-H2O" in Presence of Surfactants / Н. С. Кожевникова, Т. И. Горбунова, А. С. Ворох, Д. Н. Бажин, А. Я. Запевалов, В. И. Салоутин, А. А. Ремпель, О. Н. Чупахин // Доклады Академии наук. - 2012. - Т. 443, N 3. - С. 321-325 : табл., граф. - Библиогр.: с. 325 (14 назв.)
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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
УСТОЙЧИВОСТЬ АГРЕГАТИВНАЯ -- СИСТЕМА КОЛЛОИДНО-ДИСПЕРСНАЯ -- НАНОЧАСТИЦЫ -- ПОВЕРХНОСТНО-АКТИВНЫЕ ВЕЩЕСТВА -- СИНТЕЗ ОРГАНОМЕТАЛЛИЧЕСКИЙ -- СУЛЬФИД КАДМИЯ

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2.
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   B 41


    Belova, N. S.
    PbS Nanoparticles: Synthesis and Size Determination by X-ray Diffraction / N. S. Belova, A. A. Rempel // Inorganic Materials. - 2004. - Vol. 40, № 1. - P. 3-10 : il. - Bibliogr. : p. 9-10 (31 ref.)
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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СУЛЬФИД СВИНЦА -- НАНОЧАСТИЦЫ -- ДИФРАКЦИЯ РЕНТГЕНОВСКАЯ
Аннотация: PbS particles down to 60 nm in size are prepared by chemical precipitation from aqueous solutions. An x-ray diffraction procedure is described for determining the particle size and atomic structure. The PbS particles precipitating in the solution bulk are shown to be monocrystalline. Reducing the particle size of PbS from 300 to 60 nm increases the rms atomic displacements (by 30%) and lattice strain (by 0.1%) in the particles. The lattice parameter of PbS is found for the first time to increase with decreasing particle size

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3.
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   E 43


   
    Electronic Structure and Magnetic States of Crystalline and Fullerene-Like Forms of Nickel Dichloride NiCl2 / A. N. Enyashin, N. I. Medvedeva, Yu. E. Medvedeva, A. L. Ivanovskii // Physics of the Solid State. - 2005. - Vol. 47, № 3. - P527-530 : il. - Bibliogr. : p. 530 (12 ref.)
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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ДИХЛОРИД НИКЕЛЯ -- ФУЛЛЕРЕНЫ -- ФЕРРОМАГНЕТИКИ -- СТЕХИОМЕТРИЯ
Аннотация: The electronic structure and magnetic properties of the crystalline and fullerene-like forms of nickel dichloride NiC² are investigated in the framework of the local spin density functional theory. It is demonstrated that the band gap can be reproduced in the energy band spectrum of the NiCl² compound with inclusion of the magnetic ordering in the calculation of the band structure. The metamagnetic nature of the NiCl² dichloride (i.e., the transition from an antiferromagnetic phase to a ferromagnetic phase in a weak magnetic field) is explained in terms of a small difference (0.025 eV/cell) between the total energies of the ferromagnetic and antiferromagnetic phases. Polyhedral three-shell nanoparticles of the NiCl² compound exhibit magnetic properties (the magnetic moment of nickel lies in the range 2.0–2.3 µβ). For isostructural nanoparticles of the FeCl² dichloride, the magnetic moment of iron is larger and falls in the range 4.2–4.5 µβ, whereas nanoparticles of the CdCl² dichloride are found to be nonmagnetic. The results of analyzing the interatomic interactions indicate that the composition of fullerene-like nanoparticles of the dichlorides under investigation can deviate from the 1 : 2 stoichiometric composition

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4.
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   E 43


   
    Electronic structure, chemical bonding, and properties of binary carbides MxMy ′ Cz in the Crystalline and molecular states: XES, XPS, and quantum-chemical studies / V. M. Cherkashenko, S. Z. Nazarova, A. I. Gusev, A. L. Ivanovskii // Journal of Structural Chemistry. - 2001. - Vol. 42, № 6. - P1002-1024 : il. - Bibliogr. : p. 1021-1024 (103 ref.)
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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КАРБИДЫ БИНАРНЫЕ -- КВАНТОВО-ХИМИЧЕСКИЕ ИССЛЕДОВАНИЯ
Аннотация: This paper reviews the results of electronic structure studies and investigations of the nature of chemical bonding and properties of binary d-metal carbides in the crystalline and molecular states. X-ray emission and X-ray photoelectron spectroscopy as well as quantum-chemical data are analyzed, and variations of the electronic properties and interatomic interactions are discussed for carbides of high-melting metals doped on the metal sublattice and a series of their reciprocal solid solutions: NbC–TaC, TiC–VC0.87, TiC–NbC, and NbC–MoC0.67 over a wide range of compositions. Prospects are discussed for application of quantum-chemical methods to structure and property modeling and forecasting for a new class of molecular clusters — binary metallocarbohedrenes M8−nMn ′C12 and related metal–carbon nanoparticles of “mixed” composition

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5.
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   E 58


    Enyashin, A. N.
    Atomic and Electronic Structures and Stability of Icosahedral Nanodiamonds and Onions / A. N. Enyashin, A. L. Ivanovskii // Physics of the Solid State. - 2007. - Vol. 49, № 2. - P392-397 : il. - Bibliogr. : p. 397 (25 ref.)
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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КАРБОНОВЫЕ НАНОЧАСТИЦЫ -- ФУЛЛЕРЕНЫ
Аннотация: The relative stability of alternative carbon nanoparticles with icosahedral symmetry, such as diamond-like nanocrystallites and multiwalled fullerenes (onions), is investigated using the parametric model and the density functional tight-binding (DFTB) method. It is demonstrated that an increase in the size of particles and their hydrogenation favor the stabilization of diamond-like nanocrystallites. The formation of “intermediate” nanostructures consisting of diamond-like nanocrystallites inside the fullerene cage is revealed. The electronic spectra of icosahedral carbon nanoparticles are calculated

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6.
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   E 58


    Enyashin, A. N.
    Structure and electronic characteristics of new graphyne-like fullerenes of boron nitride: quantum-chemical modelling / A. N. Enyashin, Yu. N. Makurin, A. L. Ivanovskii // Theoretical and Experimental Chemistry. - 2004. - Vol. 40, № 2. - P71-76 : il. - Bibliogr. : p. 75-76 (19 ref.)
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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ГРАФЕНОПОДОБНЫЕ ФУЛЛЕРЕНЫ -- НИТРИД БОРА -- КВАНТОВО-ХИМИЧЕСКОЕ МОДЕЛИРОВАНИЕ
Аннотация: Atomic models are proposed and quantum-chemical modelling is undertaken for hypothetical graphyne-like fullerenes of boron nitride. The electronic structure and interatomic interactions are discussed for the case of the B16N16 and B48N48 molecules. The proposed polyhedral boron–nitrogen molecules, having stable dielectric characteristics and highly porous structure, may be of interest for the creation a family of new intercalated nanomaterials based on these nanoparticles

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7.
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   G 96


    Gusev, A. I.
    Relationship between Triple and Pair Correlations in an AyB1-y Solid Solution with a Planar Hexagonal Lattice / A. I. Gusev // Physics of the Solid State. - 2008. - Vol. 50, № 12. - P2256-2260 : il. - Bibliogr. : p. 2260 (25 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ТВЕРДЫЕ РАСТВОРЫ -- ГЕКСАГОНАЛЬНАЯ РЕШЕТКА -- СТРУКТУРА АТОМНАЯ
Аннотация: An analytical relationship is found between triple correlations and nearest neighbor pair correlations in an AyB1 –y solid solution with a planar hexagonal lattice (plane group p6mm). The range of variations in the triple correlation is determined as a function of the composition of the AyB1 –y solid solution and the value of the pair correlation. It is assumed that periodically ordered planar hexagonal and square island nanostructures can be considered as solid solutions A1/4 3/4with vacancy sites and sites occupied by nanoparticles A . In this case, an ordered distribution of nanoparticles over the planar-lattice sites occurs because the nearest neighbor pair correlation is negative and has a maximum magnitude

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8.
Инвентарный номер: нет.
   
   G 96


    Gusev, A. I.
    Triple Correlations in a AyB1-y Solid Solution with a Planar Hexagonal Lattice / A. I. Gusev // JETP Letters. - 2008. - Vol. 87, № 5. - P248-252 : il. - Bibliogr. : p. 251-252 (24 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ТВЕРДЫЕ РАСТВОРЫ -- ГЕКСАГОНАЛЬНАЯ РЕШЕТКА -- НАНОЧАСТИЦЫ
Аннотация: It is shown that triple correlations in a AyB1 –y solid solution with a planar hexagonal lattice are due to the presence of nearest-pair correlations. The admissible range of the triple correlation as a function of the composition of the AyB1 –y solid solution and pair correlation value is determined. It is shown that periodically ordered planar hexagonal and square-island nanostructures can be considered as A1/4 3/4 solid solutions with vacant sites and sites occupied by nanoparticles A. In this case, the ordered distribution of the nanoparticles over the sites of the planar lattice is caused by the nearest -air correlation that is negative in sign and maximal in absolute value

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9.
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   I-65


   
    Inorganic Nanotubes and Fullerene-Like Structures (IF) / R. Tenne, M. Remiskar, A. N. Enyashin, G. Seifert // Topics in Applied Physics. - 2008. - Vol. 111. - P631-671 : il. - Bibliogr. : p. 660-669 (162 ref.)
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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
НЕОРГАНИЧЕСКИЕ НАНОТРУБКИ -- ФУЛЛЕРЕНОПОДОБНАЯ СТРУКТУРА
Аннотация: Back in 1992 it was proposed that nanoparticles of layered compounds will be unstable against folding and will close up into fullerene-like structures (IF) and nanotubes. In the years that followed nanotubes and fullerene-like structures were synthesized from numerous compounds with layered structure. More recently, crystalline and noncrystalline nanotubes of compounds with a 3D, i.e., quasi-isotropic lattice have been intensively investigated. In view of their eminent applications potential, much effort and substantial progress has been achieved in the scaling-up of the synthesis of inorganic nanotubes and fullerene-like nanoparticles of WS2 and MoS2 and also other compounds. Early on it was suggested that hollow nano-octahedra consisting of a few hundred MoS2 moieties make the true analogs of C60, etc. This notion has been advanced considerably in recent years through a combined experimental–theoretical effort. tribological applications and lately for impact resilient nanocomposites. These tests indicated that IF-MoS2 and IF-WS2 are heading for large-scale applications in the automotive, machining, aerospace, electronics, defense, medical and numerous other kinds of industries. A few products based on these nanoparticles have been recently commercialized by “ApNano Materials, Inc” (“NanoMaterials, Ltd.”, see also www.apnano.com). Most recently, a manufacturing facility for the commercialization of these nanomaterials has been erected and sales of the product started. Novel applications of inorganic nanotubes and fullerene-like nanoparticles in the fields of catalysis; microelectronics; Li rechargeable batteries; medical and optoelectronics will be discussed

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10.
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   I-69


   
    Interaction of copper nanoparticles with liposomes [Текст] / G. Yu. Ostaeva, A. A. Yaroslavov, E. D. Selishcheva, D. A. Davydov, I. M. Papisov // Vysokomolekulyarnye Soedineniya, Seriya A i Seriya B. - 2008. - Vol. 50, № 6. - С. 1098-1101
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Рубрики: ХИМИЧЕСКИЕ НАУКИ

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11.
Инвентарный номер: нет.
   
   I-98


    Ivanovskaya, V. V.
    Structure, Electronic Spectrum, and Chemical Bonding of Fullerene-like Nanoparticles Based on MB2(M = Mg, Al, Sc, Ti) Layered Diborides / V. V. Ivanovskaya, A. N. Enyashin, A. L. Ivanovskii // Inorganic Materials. - 2004. - Vol. 40, № 2. - P. 134-143 : il. - Bibliogr. : p. 141-143 (63 ref.)
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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ФУЛЛЕРЕНОПОДОБНЫЕ НАНОЧАСТИЦЫ -- ДИБОРИДЫ СЛОИСТЫЕ -- ДИБОРИДЫ МЕТАЛЛОВ
Аннотация: The structure, electronic spectrum, and interatomic interaction parameters of MnB2n(n= 10, 30, 90, 120, 160; M = Mg, Al, Sc, Ti) fullerene-like molecules based on MB2 layered diborides are assessed using quantum-chemical modeling and are analyzed in relation to the atomic configuration, size, and chemical composition of MnB2n. The electronic structure of concentric nanoparticles consisting of MnB2n cage molecules having identical (M10B20@M90B180) or ifferent (M10B20@ B180, where M, M' = Mg, Al) compositions isconsidered. The results are compared with the electronic properties of crystalline MB2 phases

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12.
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   K 80


    Kozhevnikova, N. S.
    Preparation of Stable Colloidal Solution of Cadmium Sulfide CdS Using Ethylenediaminetetraacetic Acid / N. S. Kozhevnikova, A. S. Vorokh, A. A. Rempel // Russian Journal of General Chemistry. - 2010. - Vol. 80, № 3. - P391-394 : il. - Bibliogr. : p. 394 (19 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КОЛЛОИДНЫЕ РАСТВОРЫ -- СУЛЬФИД КАДМИЯ -- ОРГАНИЧЕСКАЯ ХИМИЯ
Аннотация: By the method of chemical condensation a stable aqueous colloidal solution of nanoparticles of cadmium sulfide was obtained. The solution obtained in the daylight had a bright lemon-yellow color. For the temporary stabilization of the solution was used an organic complexone, disodium ethylenediaminetetraacetate (EDTA), that prevented coagulation of colloidal particles up to several months at 4°C. At room temperature, the solution remained stable during a month. The structure and properties of the disperse phase were studied by the X-ray diffraction, optical fluorescence, and electron microscopy. The solid particles size is about 3 nm, they have a disordered close-packed structure with the space group P6mm and possess the photoluminescence color from green to orange depending on the duration of keeping the solution. The size of coagulates was 10 nm, 100 nm, and 1 μm after keeping for 1, 2, and 4 months, respectively

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13.
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   M 78


   
    Modeling of the Structure and Electronic Structure of Condensed Phases of Small Fullerenes C28 and Zn@C28 / A. N. Enyashin, V. V. Ivanovskaya, Yu. N. Makurin, A. L. Ivanovskii // Physics of the Solid State. - 2004. - Vol. 46, № 8. - P1569-1573 : il. - Bibliogr. : p. 1572-1573 (23 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КОНДЕНСИРОВАННЫЕ ФАЗЫ -- ФУЛЛЕРЕНЫ
Аннотация: A comparative analysis of the stability factors and electronic structure of two possible crystalline forms of small fullerene C28 and endohedral fullerene Zn@C28 with diamond and lonsdaleite structures is performed using a cluster model. Atoms of elements that, when placed inside C28 cages, have no significant effect on the stability of free small-fullerene molecules are shown to be able to dramatically change the electronic properties and reactivity of the C28 skeleton and to be favorable for forming small-fullerene crystalline modifications, which are covalent crystals. In contrast, if the presence of foreign atoms inside C28 cages stabilizes the isolated nanoparticles, then molecular crystals (such as C60 fullerites) are formed due to weak van der Waals forces

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14.
Инвентарный номер: нет.
   
   M 88


   
    Mössbauer Spectroscopy Study of the EuO:Fe Spintronic Material / A. S. Borukhovich, N. I. Ignat’eva, K. I. Yanushkevich, A. I. Stognij, Yu. A. Fedotova // JETP Letters. - 2009. - Vol. 89, № 4. - P191-193 : il. - Bibliogr. : p. 193 (8 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
МЕССБАУЭРОВСКАЯ СПЕКТРОСКОПИЯ -- ОКСИД ЕВРОПИЯ
Аннотация: The states of iron and europium in the EuO:Fe composite spintronic material have been studied by means of room-temperature Mössbauer spectroscopy. In both cases, two sets of lines indicating the ferromagnetism and superparamagnetism of metallic iron nanoparticles in the composite and the appearance of a fraction of europium ions in the Eu3+ oxidation state in the matrix in addition to the main Eu2+ state have been observed in the respective spectra. In the europium case, the observation implies the possibility of a partial spin polarization of paramagnetic europium ions in Eu–Fe–O clusters and an increased specific magnetization of the composite

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15.
Инвентарный номер: нет.
   
   P 29


   
    Particle-size hierarchy in zirconium hydroxide deposits on inert supports [Text] / G. P. Shveikin, A. P. Shtin, E. V. Polyakov, T. A. Denisova, Ya. N. Blinovskov, I. G. Grigorov, A. N. Khlebnikov // Inorganic Materials. - 2005. - Vol. 41, № 5. - P. 476-482 : il. - Библиогр. : с. 482 (22 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ГИДРОКСИД ЦИРКОНИЯ -- НАНОЧАСТИЦЫ -- ГИДРОКСИД ТИТАНА
Аннотация: Experimental data are presented on the structure, composition, size, and proton configuration of zirconium hydroxide particles prepared by precipitation from sulfate solutions with and without inert supports (acetylene black). It is shown that growing zirconium hydroxide particles have an hierarchical structure with a constant ratio of the average particle sizes between two consecutive levels of the hierarchy. This feature is common to titanium and zirconium hydroxide nanoparticles, which, however, differ in reactivity

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16.
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   P 56


   
    Phase Composition and Some Properties of Titanium Carbonitride–Titanium Nickelide Alloys with Al2O3 Nanoparticles / A. E. Ermakov, I. V. MIsharina, I. G. Grigorov, V. G. Pushin, Yu. G. Zainulin // Russian Metallurgy (Metally). - 2009. - № 1. - P77-81 : il. - Bibliogr. : p. 81 (10 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КАРБОНИТРИД ТИТАНА -- НИКЕЛИД ТИТАНА -- СПЛАВЫ
Аннотация: The phase formation in and the microstructure of titanium carbonitride–titanium nickelide alloys with aluminum oxide Al2O3 nanopowder additions are studied by X-ray diffraction, electron-microscopic, and electron-probe microanalyses. The phase interaction is characterized by the redistribution of nonmetallic elements and aluminum between refractory and binding phases with the formation of a nonstoichiometric titanium–aluminum (Ti,Al)(C,N) carbonitride and a titanium–aluminum nickelide. The number of forming phases and their compositions are controlled by the kinetic parameters of the process

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17.
Инвентарный номер: нет.
   
   P 93


   
    Properties of the amorphous-nanocrystalline Gd2O3 powder prepared by pulsed electron beam evaporation / G. V. Ionov, S. Yu. Sokovnin, S. A. Uporov, M. G. Zuev // Physics of the Solid State. - 2013. - Vol. 55, № 6. - С. 1262-1271
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
НАНОПОРОШКИ -- ФАЗОВЫЕ ПРЕВРАЩЕНИЯ -- ФОТОЛЮМИНЕСЦЕНЦИЯ
Аннотация: An amorphous-nanocrystalline Gd2O3 powder with a specific surface area of 155 m2/g has been prepared using pulsed electron beam evaporation in vacuum. The nanopowder consists of 20- to 500-nm agglomerates formed by crystalline nanoparticles (3–12 nm in diameter) connected by amorphous-nanocrystalline strands. At room temperature, the Gd2O3 nanopowder exhibits a paramagnetic behavior. The phase transformations occurring in the powder have been investigated using differential scanning calorimetry and thermogravimetry (40–1400°C). The amorphous phase of the nanopowder is thermally stable up to a temperature of 1080°C. It has been found that the amorphous phase has an inhibitory effect on the temperature of the polymorphic transformation from the cubic phase into the monoclinic phase. It has been revealed that, compared with the microcrystalline powder, the Gd2O3 nanopowder is characterized by a complete quenching of photoluminescence.

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18.
Инвентарный номер: нет.
   
   R 42


   
    Removal Of CR(VI) from aqueous solutions by magnetite nanoparticles with different sizes and crystal structure / O. Linnikov, I. Rodina, V. Shevchenko , I. Medvedeva, M. Uimin, N. Schegoleva, A. Yermakov , V. Platonov , V. Osipov // Desalination and Water Treatment . - 2014. - Vol. 52, № 1-3. - P324-330
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
НАНОЧАСТИЦЫ -- СТРУКТУРА КРИСТАЛЛИЧЕСКАЯ

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19.
Инвентарный номер: нет.
   
   R 42


    Rempel, A. A.
    Intrinsic and extrinsic defects in palladium and copper after severe plastic deformation [Text] / A. A. Rempel, S. Z. Nazarova, A. I. Gusev // Структура и свойства нанокристаллических материалов: [Сб. науч. тр.]. - 1999. - P265-278. - Библиогр.: 15 назв.
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ДЕФЕКТЫ ВНУТРЕННИЕ -- ВНУТРЕННИЕ ДЕФЕКТЫ -- ДЕФЕКТЫ НАРУЖНЫЕ -- НАРУЖНЫЕ ДЕФЕКТЫ -- Pd -- Cu -- ДЕФОРМАЦИИ ПЛАСТИЧЕСКИЕ -- ПЛАСТИЧЕСКИЕ ДЕФОРМАЦИИ -- Fe -- ПАЛЛАДИЙ -- МЕДЬ -- ВОСПРИИМЧИВОСТЬ МАГНИТНАЯ -- МАГНИТНАЯ ВОСПРИИМЧИВОСТЬ -- МИКРОСТРУКТУРА -- НАНОЧАСТИЦЫ -- ЖЕЛЕЗО
Аннотация: In this work intrinsic defects (atomic vacancies) in palladium and extrinsic defects (impurity phase) in copper were investigated. Intrinsic defects which are interpreted as atomic vacancies and divacancies distributed in grains were found in submicrocrystalline (SMC) Pd. Intrinsic defects in SMC-Pd lead to the essential excess (8%) of the magnetic susceptibility over that of the initial polycrystalline palladium. It is shown that the effect of microstructure on the susceptibility of plastically deformed palladium may be a consequence of the change in the density of states on the Fermi level. Intrinsic defects which are interpreted as superparamagnetic iron nanoparticles with a size of a few nanometers were found in SMC-Cu. Nanoparticles of Fe in diamagnetic matrix lead to increase of magnetic susceptibility of SMC-Cu. This increase is shown to be due to the Fe nanoparticles increasing in size from 2.8 to 3.3 nm.

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20.
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   R 42


    Rempel, A. A.
    Iron nanoparticles in severe-plastic-deformed copper / A. A. Rempel, S. Z. Nazarova, A. I. Gusev // Journal of Nanoparticle Research. - 1999. - Vol. 1. - P485-490 : il. - Bibliogr. : p. 490
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Superparamagnetic iron nanoparticles with a size of a few nanometers were produced in copper by severe plastic deformation. In a isochronal annealing experiment near a temperature of 450 K, which corresponds to the temperature of structural relaxation and the first step of grain growth (from 128 to 150 nm) of submicrocrystalline copper, an abrupt increase in the magnetic susceptibility is detected. This increase is shown to be due to iron nanoparticles increasing in size from 2.8 to 3.3 nm. The vanishing of the ferromagnetic contribution by iron nanoparticles observed at 850 K, well below the Curie temperature of iron, is due to the dissolution of nanoparticles in plastically deformed copper

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