Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "high temperature and high pressure" wg kryterium: Wszystkie pola

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-6 z 6
    Tytuł:
    Theoretical Calculations for Elastic and Thermodynamic Properties of NbN₂ under High Pressure
    Autorzy:
    Hou, Bao-Sen
    Liu, Ke
    Mao, Xiao-Chun
    Tan, Jiao
    Zhou, Xiao-Lin
    Powiązania:
    https://bibliotekanauki.pl/articles/1032591.pdf
    Data publikacji:
    2017-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    high temperature and high pressure
    elastic constants
    anisotropy
    Debye temperature
    NbN₂
    Opis:
    The structural and elastic properties of NbN₂ at high pressures were investigated through the first-principles calculation. Results indicate that NbN₂ is a potential hard material. NbN₂ meets mechanical stability criteria and possesses ductility within the pressure of 100 GPa. The elastic anisotropy under high pressure was achieved by the elastic anisotropy factors, which reduce with increasing pressure. Using the quasi-harmonic Debye model, we also investigated the thermodynamic properties of NbN₂.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 4; 1363-1370
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Revealing the Defects Introduced in N- or Ge-doped Cz-Si by γ Irradiation and High Temperature-High Pressure Treatment
    Autorzy:
    Wieteska, K.
    Misiuk, A.
    Prujszczyk, M.
    Wierzchowski, W.
    Surma, B.
    Bąk-Misiuk, J.
    Romanowski, P.
    Shalimov, A.
    Capan, I.
    Yang, D.
    Graeff, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1812256.pdf
    Data publikacji:
    2008-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.05.c-
    61.72.-y
    61.82.-d
    Opis:
    Effect of processing under high hydrostatic pressure (= 1.1 GPa), applied at 1270 K, on Czochralski grown silicon with interstitial oxygen content $(c_O)$ up to $1.1×10^{18} cm^{-3}$, admixed with N or Ge (Si-N, c_N ≤ $1.2×10^{15} cm^{-3}$, or Si-Ge, $c_{Ge} ≈ 7×10^{17} cm^{-3}$, respectively), pre-annealed at up to 1400 K and next irradiated withγ-rays (dose, D up to 2530 Mrad, at energy E = 1.2 MeV), was investigated by high resolution X-ray diffraction, Fourier transform infrared spectroscopy, and synchrotron topography. Processing of γ-irradiated Si-N and Si-Ge under high pressure leads to stimulated precipitation of oxygen at the nucleation sites created by irradiation. It means that radiation history of Si-N and Si-Ge can be revealed by appropriate high temperature-high pressure processing.
    Źródło:
    Acta Physica Polonica A; 2008, 114, 2; 439-446
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetization of GaMnN Ceramics Prepared from Nanopowders by an Anaerobic Synthesis and High-Pressure High-Temperature Sintering
    Autorzy:
    Gosk, J.
    Drygaś, M.
    Janik, J.
    Gierlotka, S.
    Pałosz, B.
    Twardowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1398535.pdf
    Data publikacji:
    2016-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Mm
    81.07.Wx
    81.07.-b
    Opis:
    Herein, we report a study on magnetic properties of GaMnN ceramics prepared by no additive high-pressure high-temperature sintering of a range of nanopowders, the latter made via an anaerobic synthesis method in the Ga/Mn bimetallic system at various nitridation temperatures and different levels of initial Mn concentration. Measurements of the magnetization as a function of temperature and magnetic field for the ceramics and parent nanopowders showed a typical paramagnetic behavior. Antiferromagnetic interactions between Mn-ions incorporated in the GaN lattice, GaMnN, were revealed and shown to be much stronger in the ceramics than in the respective nanopowders. In addition, in all of these materials an antiferromagnetic contribution originating from a residual Mn₂SiO₄ by-product was also observed. The highest calculated Mn concentration in the nanopowders reached 3.4 at.%. Complex mixtures of gallium nitride polytypes with multimodal particle size distributions in the nanosized range (small nano: 2-8 nm, large nano: 35-60 nm) were converted upon sintering to the single hexagonal GaN phase with average crystallite sizes of 40-80 nm and higher. For the optimal 700°C-treated materials, the Mn concentration in the parent GaMnN nanopowder was 3.2 at.% whereas in the derived ceramics it amounted to 5.5 at.%. At the same time, contributions of the adventitious Mn₂SiO₄ by-product significantly decreased upon sintering.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 1a; A-103-A-106
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structural and Electronic Properties of Graphene Oxide and Reduced Graphene Oxide Papers Prepared by High Pressure and High Temperature Treatment
    Autorzy:
    Tokarczyk, M.
    Kowalski, G.
    Witowski, A.
    Koziński, R.
    Librant, K.
    Aksienionek, M.
    Lipińska, L
    Ciepielewski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1195411.pdf
    Data publikacji:
    2014-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.48.Gh
    61.72.Dd
    63.22.Rc
    Opis:
    "Graphene paper" prepared by new proprietary method involving high pressure and high temperature treatment in the reduction process show new possibilities in this area. Different phase content: multilayer and single layer graphene stacks recorded in this study for RGO samples are accompanied by the specific electric and optical parameters. We have found that process temperatures above 900°C play crucial role in structural and other properties. For the process temperature around 2000°C we found the onset of the graphitization in the samples.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 5; 1190-1194
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structural Properties of Some Alkali Metal Hydrides at High Temperature and Pressure
    Autorzy:
    Thakre, V.
    Singh, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030544.pdf
    Data publikacji:
    2018-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    hydrides
    phase transition
    three-body interaction
    volume collapse
    elastic constants
    cohesive energy
    Opis:
    In this paper we have developed a realistic interaction potential model to study the high pressure phase transition of ionic alkali-metal compounds KH and NaH, having B₁ structure at room temperature. We have theoretically investigated phase transition pressures and volume collapses of KH and NaH at high temperatures, and found results well suited with available experimental data. The elastic constants and their pressure derivatives are reported first time. The thermodynamical properties of B₁ phase of KH and NaH are also predicted. The inclusion of temperature effect in TBIP makes the present model realistic and suitable for theoretical high-pressure studies.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 1; 186-193
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Earth Materials at High Pressure and Temperature: Recent Contributions from in situ Synchrotron X-Ray Diffraction
    Autorzy:
    Redfern, S. A. T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1963306.pdf
    Data publikacji:
    1997-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    64.60.-i
    07.35.+k
    91.35.-x
    Opis:
    The application of synchrotron X-ray powder diffraction to the study of minerals and understanding of the structure and dynamics of the Earth's deep interior is summarised. The salient features of the diamond anvil cell and large-volume multi-anvil cell high-P/T apparatus as used at synchrotron radiation sources are described, and recent developments and applications of these techniques within high-P/T mineralogy are reviewed.
    Źródło:
    Acta Physica Polonica A; 1997, 91, 4; 659-668
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies