Experimental Evidence of Clusters in Molten Alloys of the Eutectic Aluminum-Tin System by Means of a X-Ray-high Temperature-small Angle Scattering Apparatus
نویسنده
چکیده
für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namensnennung 4.0 Lizenz. ratur von 56 °C das Wasser von der höheren zur tieferen Temperatur wandert. Dieses Resultat ist nicht unvernünftig, weil alle Messungen des Thermodiffusionsfaktors a-p bei hochmolekularen Lösungen zeigen, daß mit zunehmender Konzentration des Hochpolymeren die (positive) Größe aT rapide abnimmt und im hochviskosen Bereich (in dem Messungen der Thermodiffusion unmöglich sind) wahrscheinlich negativ wird. Allerdings liegt bei gequollener Cellulose keine normale hochmolekulare Lösung, sondern ein binäres gummielastisches System mit vernetztem Hochpolymeren vor.
منابع مشابه
Structure of Molten Sn-Zn-Alloys by Means of Neutron Diffraction
As a continuation of diffraction work on melts from eutectic binary systems such as Al-Sn [1], Au-Co [2], and Bi-Cu [3] an investigation of melts from the eutectic system Sn-Zn by means of neutron diffraction will be described in the present work. The liquidus lines in the constitution diagrams of these systems always show a point of inflection, so th a t segregation tendency in molten state is...
متن کاملApplication of small angle X-ray scattering (SAXS) for differentiation between normal and cancerous breast tissues
ABSTRACT Background: Coherent scattering leads to diffraction effects and especially constructive interferences. Theseinterferences carry some information about the molecular structure of the tissue. As breast cancer isthe most widespread cancer in women, this project evaluated the application of small angleX-ray scattering (SAXS) for differentiation between normal and cancerous breast tissues....
متن کاملThe effects of different molten salt composition on morphology and purity of ZrB2 powder obtained via direct molten salt reaction method
Zirconium Diboride (ZrB2) powder was synthesized at low temperature via a Direct Molten Salt Reaction (DMSR) method. The influence of different salt compositions including eutectic mixture of (KF-NaF), (KF-KCl) and (KCl-NaCl) on the morphology and purity of the reaction products was studied. The obtained samples were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD...
متن کاملEFFECT OF HIGH TEMPERATURE OXIDATION ON THE CORROSION BEHAVIOR OF ALUMINIZED LOW CARBON STEEL IN MOLTEN ALUMINUM
Hot dip aluminizing was carried out on the low carbon steel rod under optimized conditions. The aluminized samples were further oxidized at 1000̊C in air atmosphere at two different times of 20 and 60 minutes. Microstructure study and phase analysis were studied by scanning electron microscopy and X-ray diffraction methods, respectively. The characterization of the coating showed that, Fe2...
متن کاملInvestigation of microstructure and physical properties in nanocomposite solder reinforced with various percent of graphene nanosheets (SAC0307+GNSs)
Development of electronic industries, compression of electronic equipment, and removing lead from electronic circuits for environmental issues, resulted in a significant challenge in design and development of tin-based lead-free solders with physical and mechanical properties similar to old tin-lead alloys. In this regard, the set of Sn-Ag-Cu alloys with eutectic and near eutectic compositions ...
متن کامل