Browsing by Author "Greaves, G. N."

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Browsing by Author "Greaves, G. N."

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  • Aerodynamic levitation and laser heating:Applications at synchrotron and neutron sources 
    Hennet, L.; Cristiglio, V.; Kozaily, J.; Pozdnyakova, I.; Fischer, H. E.; Bytchkov, A.; Drewitt, J. W. E.; Leydier, M.; Thiaudière, D.; Gruner, S.; Brassamin, S.; Zanghi, D.; Cuello, G. J.; Koza, M.; Magazù, S.; Greaves, G. N.; Price, D. L. (2011-05-30)
    Aerodynamic levitation is an effective way to suspend samples which can be heated with CO2 lasers. The advantages of this containerless technique are the simplicity and compactness of the device, making it possible to ...
  • Aerodynamic levitation and laser heating:Applications at synchrotron and neutron sources 
    Hennet, L.; Cristiglio, V.; Kozaily, J.; Pozdnyakova, I.; Fischer, H. E.; Bytchkov, A.; Drewitt, J. W. E.; Leydier, M.; Thiaudière, D.; Gruner, S.; Brassamin, S.; Zanghi, D.; Cuello, G. J.; Koza, M.; Magazù, S.; Greaves, G. N.; Price, D. L. (2011-05-30)
    Aerodynamic levitation is an effective way to suspend samples which can be heated with CO2 lasers. The advantages of this containerless technique are the simplicity and compactness of the device, making it possible to ...
  • Application of time resolved x-ray diffraction to study the solidification of glass-former melts. 
    Hennet, L.; Pozdnyakova, I.; Bytchkov, A.; Drewitt, J.; Kozaily, J.; Leydier, M.; Brassamin, S.; Zanghi, D.; Fischer, H. E.; Greaves, G. N.; Price, D. L. (2011-07-01)
    Using time resolved x-ray diffraction combined with aerodynamic levitation and CO2 laser heating, we have studied the structural evolution of the fragile glass-forming liquid CaAl2O4 during supercooling from the stable ...
  • Application of time resolved x-ray diffraction to study the solidification of glass-former melts. 
    Hennet, L.; Pozdnyakova, I.; Bytchkov, A.; Drewitt, J.; Kozaily, J.; Leydier, M.; Brassamin, S.; Zanghi, D.; Fischer, H. E.; Greaves, G. N.; Price, D. L. (2011-07-01)
    Using time resolved x-ray diffraction combined with aerodynamic levitation and CO2 laser heating, we have studied the structural evolution of the fragile glass-forming liquid CaAl2O4 during supercooling from the stable ...
  • Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering 
    Greaves, G. N.; Wilding, M. C.; Van, Q. V.; Majerus, O.; Hennet, L. (American Institute of Physics, 1800)
  • Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering 
    Greaves, G. N.; Wilding, M. C.; Van, Quang Vu; Majerus, Odile; Hennet, Louise (American Institute of Physics, 2009-01-29)
    Small angle x‐ray scattering (SAXS) has been measured in the wavevector range 0.01<Q<1 math−1 for supercooled yttria‐alumina melts using a laser‐heated aerodynamic furnace. SAXS intensity rises gradually with temperature ...
  • Comment on "Liquid-Liquid Phase Transition in Supercooled Yttria-Alumina" 
    Greaves, G. N.; Wilding, M. C.; Hennet, L.; Langstaff, D.; Kargl, F.; Benmore, C. J.; Weber, J. K. R. (2011-03-18)
    We welcome efforts made by Barnes et al to study liquid-liquid transitions (LLT) in supercooled Y2O3x-Al2O3(100-x) or AYx melts reported in a recent Letter [1]. The first order LLT in AY20, which we have identified in situ ...
  • Composition and polyamorphism in supercooled yttria-alumina melts 
    Greaves, G. N.; Wilding, M. C.; Langstaff, D.; Kargl, F.; Hennet, L.; Benmore, C. J.; Weber, J. K. R.; McMillan, P. F. (2011-01-15)
    By extending recent work on liquid-liquid transitions in supercooled yttria-alumina AYx liquids we draw attention to the compositional dependence of the structure factor of the high density liquid, arguing that this is ...
  • Composition and polyamorphism in supercooled yttria-alumina melts 
    Greaves, G. N.; Wilding, M. C.; Langstaff, D.; Kargl, F.; Hennet, L.; Benmore, C. J.; Weber, J. K. R.; Van, Q. Vu; Majerus, O.; McMillan, P. F. (2011-01-15)
    By extending recent work on liquid-liquid transitions in supercooled yttria-alumina AYx liquids we draw attention to the compositional dependence of the structure factor of the high density liquid, arguing that this is ...
  • Detection of first-order liquid/liquid phase transitions in yttrium oxide-aluminum oxide melts 
    Greaves, G. N.; Wilding, M. C.; Fearn, S.; Langstaff, D.; Kargl, F.; Cox, S.; Vu Van, Q.; Majérus, O.; Benmore, C. J.; Weber, R.; Martin, C. M.; Hennet, L. (2008-10-24)
    We combine small-angle x-ray scattering (SAXS) and wide-angle x-ray scattering (WAXS) with aerodynamic levitation techniques to study in situ phase transitions in the liquid state under contactless conditions. At very high ...
  • Detection of first-order liquid/liquid phase transitions in yttrium oxide-aluminum oxide melts 
    Greaves, G. N.; Wilding, M. C.; Fearn, S.; Langstaff, D.; Kargl, F.; Cox, S.; Vu Van, Q.; Majérus, O.; Benmore, C. J.; Weber, R.; Martin, C. M.; Hennet, L. (2008-10-24)
    We combine small-angle x-ray scattering (SAXS) and wide-angle x-ray scattering (WAXS) with aerodynamic levitation techniques to study in situ phase transitions in the liquid state under contactless conditions. At very high ...
  • Inelastic X-ray Scattering Studies of Zeolite Amorphisation 
    Greaves, G. N.; Kargl, F.; Ward, D.; Holliman, P.; Meneau, F. (American Institute of Physics, 2009-01-29)
    In situ inelastic x-ray scattering (IXS) experiments have been used to probe heterogeneity and deformability in zeolte Y as this thermally collapses to a high density amorphous (HDA) aluminosilicate phase. The Landau-Placzek ...
  • Inelastic X-ray Scattering Studies of Zeolite Amorphisation 
    Greaves, G. N.; Kargl, F.; Ward, D.; Holliman, P.; Meneau, F. (American Institute of Physics, 2009-01-29)
    In situ inelastic x-ray scattering (IXS) experiments have been used to probe heterogeneity and deformability in zeolte Y as this thermally collapses to a high density amorphous (HDA) aluminosilicate phase. The Landau-Placzek ...
  • In situ structural studies of alumina during melting and freezing 
    Greaves, G. N.; Wilding, M. C.; Fearn, S.; Langstaff, D.; Kargl, F.; Van, Q. Vu; Hennet, L.; Pozdnyakova, I.; Majérus, O. (2008-12-31)
    Modern levitation furnaces are enabling melting and freezing of refractory materials like Al2O3 to be studied in depth with synchrotron radiation techniques. Whilst ¿-Al2O3 is a close packed Debye-like solid, liquid Al2O3 ...
  • In situ structural studies of alumina during melting and freezing 
    Greaves, G. N.; Wilding, M. C.; Fearn, S.; Langstaff, D.; Kargl, F.; Van, Q. Vu; Hennet, L.; Pozdnyakova, I.; Majérus, O.; Cernik, R. J.; Martin, C. (2008-12-31)
    Modern levitation furnaces are enabling melting and freezing of refractory materials like Al2O3 to be studied in depth with synchrotron radiation techniques. Whilst α-Al2O3 is a close packed Debye-like solid, liquid Al2O3 ...
  • Liquid-liquid transitions, crystallization and long range fluctuations in supercooled yttrium oxide-aluminium oxide melts 
    Greaves, G. N.; Wilding, M. C.; Fearn, S.; Kargl, F.; Hennet, L.; Bras, W.; Majerus, O.; Martin, C. M. (2009-05-01)
    Employing small angle X-ray scattering (SAXS) and wide angle X-ray scattering (WAXS) combined with laser-heated aerodynamic levitation has enabled different transitions in supercooled yttrium oxide-aluminium oxide to be ...
  • Liquid-liquid transitions, crystallization and long range fluctuations in supercooled yttrium oxide-aluminium oxide melts 
    Greaves, G. N.; Wilding, M. C.; Fearn, S.; Kargl, F.; Hennet, L.; Bras, W.; Majerus, O.; Martin, Chris M. (2009-05-01)
    Employing small angle X-ray scattering (SAXS) and wide angle X-ray scattering (WAXS) combined with laser-heated aerodynamic levitation has enabled different transitions in Supercooled yttrium oxide-aluminium oxide to be ...
  • Liquids, Glasses, Density Fluctuations and Low Frequency Modes 
    Greaves, G. N.; Wilding, M. C.; Kargl, F.; Hennet, L.; Majerus, O. (Trans Tech Publications, 2008-06-01)
  • Liquids, Glasses, Density Fluctuations and Low Frequency Modes 
    Greaves, G. N.; Wilding, M. C.; Kargl, F.; Hennet, L.; Majerus, O. (2008-06-01)
    An overview is given of recent advances in the experimental physics of supercooled liquids and glasses. These are described in the context of measurements of non-ergodicity, viscosity and low frequency dynamics. Particular ...
  • Melting and Amorphisation 
    Greaves, G. N. (Royal Society of Chemistry, 2007-11-01)