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Topic Liquid Metals and Alloys

Part of our research aims at the experimental study of chemical short-range ordering in metallic liquids, where special emphasis is laid on thermodynamic properties, but also on transport properties, viscosity and interface properties. Simple model calculations are employed to explain the relationships among these properties. To a large extent, the experimental data are used as input data for CALPHAD-type optimizations of various binary and ternary alloy systems.

Areas of application for the currently investigated materials are lead-free solder materials for electronics as well as anode materials for lithium ion batteries (LIBs).

Methods (experimental):

Determination of various thermodynamic properties of liquid alloys by vapor pressure measurements (isopiestic method) and by determination of the electromotive force (emf);

Determination of heats of mixing using high-temperature calorimeters;

Application of DSC (Differential Scanning Calorimetry) and Heat–flow DSC to measure the heat capacity;

Methods (Theory):

Application of simple models for a phenomenological description of thermodynamic and other properties (e.g., associate models);

Application of these models for a comprehensive thermodynamic description of intermetallic systems;

Interpretation oft he der elektrical conductivity, of the thermoelectric force, and – in special cases – of the magnetic susceptibility;

Current Research Projects:

Experimental Thermodynamics and Phase Relations of New Electrode Materials for Li-Ion-Batteries

 

 

Institut für Anorganische Chemie - funktionelle Materialien
Universität Wien

Währingerstr. 42
A-1090 Wien

Öffnungszeiten:
Mo, Mi - Fr. 9:00 - 12.00

Do zusätzlich 13:30-15:30, entfällt in der vorlesungsfreien Zeit

T: +43 1 4277 52901
E-Mail
Universität Wien | Universitätsring 1 | 1010 Wien | T +43-1-4277-0