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High-energy X-rays between 30 keV and 1MeV, such as provided by modern synchrotron radiation sources as the ESRF and HASYLAB, bear the advantage of high penetration into most materials. Even heavy element compositions can be accessed in their volume. The range of applications is huge and spreads from nuclear spectroscopy to the characterization of metal(More)
Two previous short-term studies (12 weeks and up to 16 weeks) that used androgens to supplement recombinant human erythropoietin (rHuEPO) for the treatment of the anemia associated with end-stage renal disease showed divergent results. Both studies were limited by their brief duration, since the hematopoietic effect of androgens does not peak until 5(More)
A novel quadruple perovskite oxide CeCu3Fe4O12 has been synthesized under high-pressure and high-temperature conditions of 15 GPa and 1473 K. (57)Fe Mössbauer spectroscopy displays a charge disproportionation transition of 4Fe(3.5+) → 3Fe(3+) + Fe(5+) below ∼270 K, whereas hard X-ray photoemission and soft X-ray absorption spectroscopy measurements confirm(More)
High-energy synchrotron X-ray diffraction is a novel and powerful tool for bulk studies of materials and is applied to the investigation of a high Nb-bearing c-TiAl-based alloy. The results determined from ex situ diffraction patterns of differently heat-treated samples are compared with those from metallographic examinations. The diffraction angles and(More)
A new powder diffractometer aiming for high angular, and thus high reciprocal space, resolution is being constructed within the Neutron Beam Instrumentation Project at the upcoming Australian Neutron Source OPAL, near Sydney. The neutron flux at the sample can be expected to be up to 10 n/cm/s. With an array of 128 position sensitive detectors, each(More)
multiphase titanium aluminide alloy Klaus-Dieter Liss, Thomas Schmoelzer, Kun Yan, Mark Reid, Matthew Peel, Rian Dippenaar, and Helmut Clemens Australian Nuclear Science and Technology Organisation, PMB 1, Menai, New South Wales 2234, Australia Department of Physical Metallurgy and Materials Testing, Montanuniversität, A-8700 Leoben, Austria Faculty of(More)
In situ high-energy X-ray diffraction study and quantitative phase analysis in the a + c phase field of titanium aluminides LaReine A. Yeoh,* Klaus-Dieter Liss, Arno Bartels, Harald Chladil, Maxim Avdeev, Helmut Clemens, Rainer Gerling and Thomas Buslaps Bragg Institute, Australian Nuclear Science and Technology Organization, Private Mail Bag 1, Menai NSW(More)
Phase transitions and their attendant atomic rearrangement processes in polycrystalline substances are most important for tailoring the physical properties of modern engineering materials. Multiphase alloys, such as c-TiAl based intermetallics possess distinguished mechanical properties depending on their thermo-mechanical treatment history and thus their(More)
Neutron diffraction has been used for in-situ investigations to elucidate the phase transformation behavior of two Mo-containing TiAl alloys with compositions of Ti-44Al3Mo and Ti-44Al-7Mo (in at.%). Five different phases are present in these alloys. These include three ordered phases at room temperature, namely a2, b0 and c and two disordered phases, a and(More)