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220 Appendix B. Site Reports—Europe<br />

RESEARCH AND DEVELOPMENT HIGHLIGHTS<br />

The inert gas condensation method has been optimized by using an<br />

aerosol flow condenser. Characterization of product resulted in an 80%<br />

reduction in the primary particle mean diameter <strong>and</strong> 17% reduction in<br />

geometric st<strong>and</strong>ard deviation. Flow conditions also determined the primary<br />

particle diameter <strong>and</strong> the geometric st<strong>and</strong>ard deviation.<br />

There is considerable investigation on the synthesis of nanocrystalline<br />

metal oxides <strong>and</strong> the formation of NH 4 MnF 3 by microemulsion techniques.<br />

Size <strong>and</strong> distribution of the primary reverse micelles were determined by<br />

dynamic light scattering.<br />

An analytical approach is now available for determining the Coulomb<br />

blockade <strong>and</strong> single electron tunneling phenomena for arbitrary tunnel<br />

junctions coupled in series.<br />

Size controlled synthesis of nanocrystalline BaTiO 3 by a sol-gel type<br />

hydrolysis is currently under study in a microemulsion nanoreactor.<br />

EQUIPMENT<br />

• Small Angle Scattering • ESCA Nanoscope<br />

• NMR • Nanodensitometer<br />

• GC/MS • X-Ray Diffraction<br />

• ESCA • Differential Thermal Analysis<br />

• TEM • Dilatometry<br />

• Neutron Diffraction • Differential Scanning Calorimetry<br />

• SEM • Porosity measurements<br />

• AFM<br />

• Scanning Tunneling Microscopy<br />

• Magnetism/Vibrating Sample<br />

Magnetometer<br />

CONCLUDING REMARKS<br />

The synthesis <strong>and</strong> properties of nanocrystalline materials include<br />

researching metals, metal oxides <strong>and</strong> nanocomposites. Preparation methods<br />

are by inert gas condensation <strong>and</strong> ball milling. Specific properties of interest<br />

are catalytic, sensor, magnetic <strong>and</strong> mechanical attributes. Such work is<br />

providing increased underst<strong>and</strong>ing <strong>and</strong> capability in the investigation of<br />

nanoscale science <strong>and</strong> technology at the University of the Saarl<strong>and</strong>.

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