Have any question? | +8613621919955 / [email protected]

  • View details

    Radiation Induced Amorphization Reviews in Mineralogy and

    1 Jan 2000 The earliest description of a change in mineral property caused by radiation damage was by Jöns Jacob Berzelius in 1814 Berzelius a Swedish physician and mineral chemist was certainly one of the most eminent scientists of his century discovering the elements cerium selenium and thorium

  • View details

    Calculation of vibrational properties of selenium IOPscience

    Calculation of vibrational properties of selenium C Oligschleger† and J C Schön‡ † Institut für Algorithmen und Wissenschaftliches Rechnen GMD Forschungszentrum Inform ationstechnik D 53754 St Augustin Germany ‡ Institut für Anorganische Chemie und SFB408 Universität Bonn Gerhard Domagk Strasse 1

  • View details

    Evaluation of Biofield Energy Treatment on Physical and Thermal

    The objective of this study was to investigate the influence of biofield energy treatment on the physical and thermal properties of the selenium powder The selenium 19 Fuse M Shirakawa Y Shimosaka A Hidaka J 2003 Mechanically strain induced modification of selenium powders in the amorphization process

  • View details

    structural and phase transformations in condensed selenium JOAM

    of amorphization without the glass formation and the corresponding glass transition temperature Tg The following ideas are laid at the base of the concept of the polymeric polymorphoid structure of glass and glassforming liquid glass and glass forming liquid GL are built more or less of co polymerized structural

  • View details

    Structual transformation amorphization and fracture in CACS

    amorphization 14 The selenium nanowires recently fabricated developed amorphous regions when exposed to radiation 4 Figure 3 shows the change in atomic configurations of the silicon atoms in the 128 chain nanowire with time at 15 strain The disordered region is clear in contrast to the ordered chains of the crystal

  • View details

    Anomalous high pressure behavior of amorphous selenium from

    9 Sep 2008 The behavior of amorphous materials under pressure is a problem of great current interest Unusual behavior such as pressure induced amorphization of crystalline forms pressure induced polyamorphism low to high density forms of insulating and metallic glasses and the dynamics of pressure induced

  • View details

    Radiation Induced Amorphization GeoScienceWorld

    elements cerium selenium and thorium He discovered that some U and Th bearing minerals glowed on moderate heating releasing sometimes violently large amounts of energy This pyrognomic behavior was first observed in gadolinite REE 2FeBe2Si2O10 as it released stored energy Today this same type of nbsp

  • View details

    High pressure polymorphs and amorphization of eScholarship

    25 Jul 2016 High pressure polymorphs and amorphization of upconversion host material NaY WO4 2 Permalink https escholarship org uc item 7b9657rd Journal Applied Physics in amorphous selenium and the local topological fluctuations during phase transition are proposed to be the origin of the anomaly 31 nbsp

  • View details

    Sensors Free Full Text Development of an Amorphous Selenium

    11 Oct 2013 Amorphous selenium a Se based photodetectors are promising candidates for imaging devices due to their high spatial resolution and response speed as well as extremely high sensitivity enhanced by an internal carrier multiplication In addition a Se is reported to show sensitivity against wide variety nbsp

  • View details

    Molecular structure of vapor deposited amorphous selenium

    We developed a true vapor deposited process for the deposition of selenium molecules onto a substrate using empirical molecular vapor compositions and densities We prepared both G J Fan F Q Guo Z Q Hu M X Quan and K Lu Amorphization of selenium induced by high energy ball milling Phys Rev

  • View details

    Structure Changes during Amorphization of Ge–Se Alloys by

    Keywords mechanical milling germanium–selenium alloys amorphization X ray diffraction Raman EXAFS short range ordering 1 Introduction Ge–Se alloys form two intermediate compounds that is congruently melting GeSe2 and peritectically formed GeSe 1 Crystalline GeSe2 is constructed by GeSe4 2 tetrahedral nbsp

  • View details

    Effect of Mechanical Milling and Cold Pressing on Co Powder

    2 Nov 2011 Amorphization in nonmetallic elements such as gallium 19 silicon 21 germanium 22 and selenium 23 is easily achievable However some studies reported amorphous phases in metallic titanium 24 nickel 25 and cobalt 26 27 produced via nonequilibrium processing Among the nonequilibrium nbsp

  • View details

    Examples Non crystalline materials ESRF

    ZrW2O8 Semiconducting selenium nanoparticles read more about the session on total scattering form powder diffraction at EPDIC 10 ZrW2O8 A recent study 1 of ZrW2O8 investigated the amorphous phase that can be recovered after its high pressure amorphization transition above 1 5 GPa Reverse Monte Carlo nbsp

  • View details

    Amorphization of selenium induced by high energy Dr K Lu Group

    Amorphization of selenium induced by high energy ball milling G J Fan F Q Guo Z Q Hu M X Quan and K Lu State Key Laboratory for RSA Institute of Metal Research Chinese Academy of Sciences Shenyang 110015 People 39 s Republic of China Received 24 September 1996 revised manuscript received 23 nbsp

  • View details

    Kinetics of Sodium and Selenium Reactions in Sodium Ion Batteries

    2 In this work we have investigated the kinetics of sodiation reaction in selenium nanotube as the cathode material for sodium ion battery We have Moreover the speed of solid state amorphization process is nearly 10 times higher than lithation process when selenium nanotube were tested in lithiation reaction Molecule nbsp

  • View details

    Deformation induced localized solid state amorphization in Nature

    4 Jul 2012 Here we present experimental evidence of localized solid state amorphization in bulk nanocrystalline nickel introduced by quasi static compression at room temperature Fan G J Guo F Q Hu Z Q Quan M X amp Lu K Amorphization of selenium induced by high energy ball milling Phys Rev B 55 nbsp

  • View details

    High pressure polymorphs and amorphization of Research Online

    29 Jul 2016 High pressure polymorphs and amorphization of upconversion host material NaY WO4 2 Abstract The pressure effect on the structural change of upconversion host material NaY WO4 2 was studied by using in situ synchrotron X ray diffraction A transition from the initial scheelite phase to the nbsp