Главная Новые поступления Описание Шлюз Z39.50

Базы данных


Труды сотрудников Института химии твердого тела УрО РАН - результаты поиска

Вид поиска

Область поиска
в найденном
 Найдено в других БД:Каталог книг и продолжающихся изданий (8)Каталог диссертаций и авторефератов диссертаций УрО РАН (74)Каталог препринтов УрО РАН (1975 г. - ) (1)Изобретения уральских ученых (1)Нанотехнологии (6)Труды Института высокотемпературной электрохимии УрО РАН (115)Труды сотрудников Института горного дела УрО РАН (1)Труды сотрудников Института органического синтеза УрО РАН (21)Расплавы (166)Публикации Черешнева В.А. (1)Публикации Чарушина В.Н. (4)Каталог библиотеки ИГД УрО РАН (1)Каталог библиотеки ИЭРиЖ УрО РАН (3)
Формат представления найденных документов:
полныйинформационныйкраткий
Отсортировать найденные документы по:
авторузаглавиюгоду изданиятипу документа
Поисковый запрос: (<.>K=MG<.>)
Общее количество найденных документов : 133
Показаны документы с 1 по 10
 1-10    11-20   21-30   31-40   41-50   51-60      
1.
Инвентарный номер: нет.
   
   A 53


   
    An Anomaly in the Magnetic Susceptibility of the Mg1 – xCuxO Solid Solutions with 0.01 / A. A. Samokhvalov, T. I. Arbuzova, N. A. Viglin, S. V. Naumov, I. B. Smolyak, A. V. Korolev, N. I. Lobachevskaya // Physics of the Solid State. - 2000. - Vol. 42, № 4. - P719-721 : il. - Bibliogr. : p. 721 (5 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СВЕРХПРОВОДИМОСТЬ -- МАГНИТНАЯ ВОСПРИИМЧИВОСТЬ -- ОКСИКУПРАТ МАГНИЯ
Аннотация: The problem of localized superconductivity has motivated the preparation of Mg1 – xCuxO solid&&solutions with NaCl structure and 0.01<= x<= 0.20, as well as a study of the magnetization and magnetic susceptibility X in the 2–400 K temperature range and in magnetic fields of up to 5 T. The temperature dependence of X is described for all compositions by the Curie–Weiss law,X = C/(T –teta), where the constant C is close to the value calculated for each composition for m off = 1.7–1.9 m(beta), and (teta) is close to zero. For T < 30 K, X(T) deviates for all compositions toward lower X, which can be attributed to magnetic ordering of exchange-coupled clusters in the solid solution. At T ~ 320–330 K, an anomaly of a diamagnetic type, i.e., a decrease of X by 6–30% of&&its paramagnetic value, has been observed for all compositions against the background of the generally paramagnetic X(T). A discussion is presented of alternative reasons for this anomaly and of its possible connection with localized superconductivity

Полный текст
Найти похожие

2.
Инвентарный номер: нет.
   
   S 53


    Shein, I. R.
    Atomic models of non-stoichiometric layered diborides M1?xB2 (M = Mg, Al, Zr and Nb) from first principles / I. R. Shein, A. L. Ivanovskii // Physica C. - 2008. - Vol. 468. - P. 2224-2228 : il. - Bibliogr. : p. 2228 (43 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ДИБОРИДЫ МЕТАЛЛОВ -- НЕСТЕХИОМЕТРИЯ -- СВОЙСТВА ЭЛЕКТРОННЫЕ
Аннотация: Two atomic models of non-stoichiometric metal diborides M1-xB2 are now assumed: (i) the presence of cation vacancies and (ii) the presence of "super-stoichiometric" boron which is placed in cation vacancy site. We have performed first principle total energy calculations using the VASP-PAW method with the generalized gradient approximation (GGA) for the exchange-correlation potential in a perspective to reveal the trends of their possible stable atomic configurations depending on the type of M cations (M = Mg, Al, Zr or Nb) and the type of the defects (metal vacancies versus metal vacancies occupied by??"super-stoichiometric"boron in forms of single atoms, dimers B2 or trimers B3). Besides we have estimated the stability of these non-stoichiometric states (on the example of magnesium–boron system) as depending on the possible synthetic routes, namely via solid-state reaction method, as well as in reactions between solid boron and Mg vapor; and between these reagents in gaseous phase. We demonstrate that the non-stoichiometric states such as B2 and B3 placed in metal sites may be stabilized, while the occupation of vacancy sites by single boron atoms is the most unfavorable

Полный текст
Найти похожие

3.
Инвентарный номер: нет.
   
   S 53


    Shein, I. R.
    Atomic models of non-stoichiometric layered diboridesM1-xB2 (M = Mg, Al, Zr and Nb) from first principles / I. R. Shein, A. L. Ivanovskii // arXiv.org, e-Print Archive, Condensed Matter. - 2008. - 15 pp. - Bibliogr. : p. 14-15 (43 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
МОДЕЛИРОВАНИЕ -- НЕСТЕХИОМЕТРИЯ -- ДИБОРИДЫ МЕТАЛЛОВ -- СВОЙСТВА ЭЛЕКТРОННЫЕ
Аннотация: Two atomic models of non-stoichiometric metal diborides M1-xB2 are now assumed: (i) thepresence of cation vacancies and (ii) the presence of “super-stoichiometric” boron which is placed in cation vacancy site. We have performed first principle total energy calculations using the VASP-PAW method with the generalized gradient approximation (GGA) for the exchangecorrelation potential in a perspective to reveal the trends of their possible stable atomic configurations depending on the type of M cations (M = Mg, Al, Zr or Nb) and the type of the defects (metal vacancies versus metal vacancies occupied by “super-stoichiometric” boron in forms of single atoms, dimers B2 or trimers B3). Besides we have estimated the stability of these non-stoichiometric states (on the example of magnesium-boron system) as depending on the possible synthetic routes, namely via solid state reaction method, as well as in reactions between solid boron and Mg vapor; and between these reagents in gaseous phase. We demonstrate that the non-stoichiometric states such as B2 and B3 placed in metal sites may be stabilized, while the occupation of vacancy sites by single boron atoms is the most unfavorable

Полный текст
Найти похожие

4.
Инвентарный номер: нет.
   
   P 80


    Polyakov, E. V.
    Behavior of Ionic and Colloid Forms of Microelements in Colloidal Chemical Extraction from Humic Acid Solutions / E. V. Polyakov // Radiochemistry. - 2007. - Vol. 49, № 4. - P432-438 : il. - Bibliogr. : p. 437-438 (44 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
КОЛЛОИДНО-ХИМИЧЕСКАЯ ЭКСТРАКЦИЯ -- ГУМИНОВАЯ КИСЛОТА -- РАСТВОРЫ -- МИКРОЭЛЕМЕНТЫ
Аннотация: Speciation and extractability of humic acids (HAs) and humate complexes of microelements are studied using the colloidal chemical extraction method in combination with ICP MS with an example of natural mineral water with high HA concentration (800 -1200 mg l(1) collected from the Salekhard region. Joint extraction behavior of ionic and colloid forms of anionic and cationic species of a large number of microelements, including U(VI) and Th(IV), and HAs is examined at their natural abundance in mineral water, as influenced by pH and HA concentration. Humic acids proved to behave in natural water as a pool of ioncolloidal species, whose protonation results in precipitation at pH 2.0 -3.5. In this case, some chemical elements are sorbed on the resulting solid and may be separated along with HAs by colloidal chemical extraction into isobutanol. In natural humate solutions, a considerable fraction (10 -99 mol %) of chemical elements is associated with HAs in the form of colloid species extractable with isobutanol

Полный текст
Найти похожие

5.
Инвентарный номер: нет.
   


   
    Bi13-xMexMo5O34±δ (Me = Mg, Ca, Sr, Ba) solid solutions: synthesis and properties / Z. A. Mikhaylovskaya, E. S. Buyanova, M. V. Morozova, S. A. Petrova, R. G. Zakharov, I. V. Nikolaenko , I. Abrahams // Ionics. - 2015. - Vol. 21, № 8. - С. 2259-2268
Кл.слова (ненормированные):
ВИСМУТ -- МАНГАНИТ ЛАНТАНА -- СПЕКТРОСКОПИЯ
Аннотация: Structural and electrochemical characteristics of substituted bismuth niobates Bi6.95Y0.05Nb2-y My O15.5±δ, where M = Fe or Zr, have been reported. The homogeneity ranges of solid solutions and crystallochemical parameters have been determined by means of X-ray powder diffraction and electron microscopy with X-ray microanalysis. The compatibility of niobates with an electrode material based on lanthanum manganite has been assessed. The electrical conductivity of sintered samples has been studied by impedance spectroscopy. It has been shown that the change of the dopant type does not lead to a noticeable change in conductivity.

Найти похожие

6.
Инвентарный номер: нет.
   
   C 51


   
    Chemical Shifts in the X-ray Emission Spectra of MgB2 and Their Correlation with the Electronic Structure [Текст] / N. I. Medvedeva, L. D. Finkelstein, S. N. Shamin, I. I. Lyakhovskaya, E. Z. Kurmaev // Physics of the Solid State . - 2004. - Vol. 46, № 11. - С. 1994-1997. - Библиогр. : с. 1997 (20 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
БОРИД МАГНИЯ -- РЕНТГЕНОВСКАЯ ЭМИССИЯ
Аннотация: The x-ray emission spectra of magnesium diboride MgB2 are measured. It is found that the Mg L2, 3 and B K a emission lines are shifted with respect to the spectra of the pure metals toward the low-energy range. The band calculations of the MgB2 diboride in the framework of the full-potential linearized muffin-tin orbital (LMTO) method demonstrate that the electron populations of the shells in both components of MgB2 are higher than those of pure metals. This increase in the electron populations is associated with the crystal contraction and manifests itself in low-energy shifts of the emission lines

Полный текст
Найти похожие

7.
Инвентарный номер: нет.
   
   C 70


   
    Colloidal Chemical Extraction of Calcium Sulfate and Sorption of Microcomponents of Fresh Water on Calcium Sulfate / E. V. Polyakov, N. N. Emel'yanova, V. T. Surikov, G. N. Ilves // Radiochemistry. - 2003. - Vol. 45, № 1. - P47-50 : il. - Bibliogr. : p. 50 (18 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
СУЛЬФАТ КАЛЬЦИЯ -- СОРБЦИЯ -- КОЛЛОИДНО-ХИМИЧЕСКАЯ ЭКСТРАКЦИЯ
Аннотация: Experimental data on colloidal chemical extraction of calcium sulfate formed in supersaturated solutions in fresh water are discussed. When the product of activities of calcium and sulfate ions is artificially exceeded, a nonequilibrium phase with the solubility close to that of CaSO4 is formed. This phase is extracted into a paraffin melt. Colloidal-chemical extraction of calcium sulfate with paraffin melt and sorption of microcomponents (single-, double-, and triple-charged cations) on calcium sulfate precipitates were studied. The precipitate has high affinity for cesium traces (Kd ~10(3) mg g1) in supersaturated solutions. Some cation species are not sorbed on the precipitate

Полный текст
Найти похожие

8.
Инвентарный номер: нет.
   
   C 91


   
    Crystal structure and magnetic properties of complex oxides Mg4-xNixNb2O9, 0=x=4 [Текст] / N. V. Tarakina, E. A. Nikulina, J. Hadermann, D. G. Kellerman, A. P. Tyutyunnik, I. F. Berger, V. G. Zubkov // Journal of Solid State Chemistry. - 2007. - Vol. 180, № 11. - С. 3180-3187
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

9.
Инвентарный номер: нет.
   
   C 91


   
    Crystal structure refinement of the new compound Mg2.5VMoO8 [Text] / V. G. Zubkov, A. P. Tyutyunnik, I. A. Leonidov, V. L. Kozhevnikov // Powder Diffraction and Crystal Chemistry: Collect. Abstr. of Int. Conf. (Saint-Petersburg, June 20-23, 1994). - 1994. - P52-53
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
Mg2.5VMoO8 -- Mg -- МАГНИЙ -- V -- ВАНАДИЙ -- Mo -- МОЛИБДЕН -- СТРУКТУРА КРИСТАЛЛИЧЕСКАЯ -- КРИСТАЛЛИЧЕСКАЯ СТРУКТУРА -- РАФИНИРОВАНИЕ -- ХИМИЯ

Найти похожие

10.
Инвентарный номер: нет.
   
   C 91


   
    Crystal structure refinement of the new compound Mg2.5VMoO8 [] / V. G. Zubkov, A. P. Tyutyunnik, I. A. Leonidov, V. L. Kozhevnikov // Powder Diffraction and Crystal Chemistry: International Conferencce (Saint-Petersburg, June 20-23, 1994): Collect. Abstr. - 1994. - С. 52-53
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ХИМИЯ -- Mg2.5VMoO8 -- Mg -- V -- Mo -- МАГНИЙ -- ВАНАДИЙ -- МОЛИБДЕН -- КРИСТАЛЛИЧЕСКАЯ СТРУКТУРА -- СТРУКТУРА КРИСТАЛЛИЧЕСКАЯ -- ОЧИСТКА

Найти похожие

 1-10    11-20   21-30   31-40   41-50   51-60      
 

Сиглы отделов ЦНБ УрО РАН


  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

  

Сиглы библиотек институтов и НЦ УрО РАН
© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)
Яндекс.Метрика