| About this Abstract |
| Meeting |
Materials Science & Technology 2011
|
| Symposium
|
Recent Advances in Structural Characterization of Materials
|
| Presentation Title |
Recent developments in research on disordered materials using high energy x-ray diffraction. |
| Author(s) |
Chris J Benmore |
| On-Site Speaker (Planned) |
Chris J Benmore |
| Abstract Scope |
The high energy x-ray diffraction (>60 keV) Pair Distribution Function (PDF) technique, enables the investigation of the average local and intermediate range structure in bulk disordered and nano-crystalline materials at the atomic level. Highly penetrating, high flux beams at synchrotrons provide access to a wide momentum transfer range compressed into a small angular cone in the forward scattering direction. Combined with advances in large area detector technology, we now have the ability to perform fast (<100ms) structural measurements on meta-stable states in high temperature ceramics and follow the synthesis of fast acting pharmecutical drugs. High energy micro-focused (20 micron) beams can also penetrate diamond anvil cells to study rocks at high pressures (>40 GPa) and the minimal absorption of x-rays at high energies leads to significantly reduced radiation damage in biological systems such as spider silk fibers. Ideas on what’s next for this probe will be discussed. |
| Proceedings Inclusion? |
Definite: A CD-only volume |