John V. Badding, Penn State
24-25th September 2010
John Badding's Research Group at Penn State's chemistry department have the following equipment:
• Four ultraviolet (244 nm, 364 nm), visible, and near infrared Raman spectrometers
• Mao-Bell diamond anvil cells
• Merrill-Basset diamond anvil cells
Study of the phase diagram of hydrogen above one megabar using modified anvil designs with enhanced chemical resistance (with C.S. Zha). An Excimer laser is used to cut dishes into the culets of the diamond anvils, which will then partly be filled with a material that reduces the chemical/physical interaction between hydrogen and diamond.
- Sci. Thrust Areas: Hydrogen & Hydrogen-Bearing Systems, Metals Under Extreme Environments
- Technology Task Force Teams: Extreme P-T Devices, Laser Techniques, Materials for Extreme P-T, Neutrons, Synchrotron Radiation
- Personnel: Reini Boehler, Alex Goncharov, Malcolm Guthrie, Russell Hemley, Ho-kwang (Dave) Mao, Chang-Sheng Zha
- Key Partners: John V. Badding, Penn State
- HPSynC: Guoyin Shen
- National Laboratory Partners: Chris Tulk, SNS
Enabling new technologies for sample analysis and fabrication are the integral part of the proposed research program. We have developed and pioneered many high-pressure techniques coupled with in-situ and ex-situ analytical and spectroscopic methods that allowed us to probe material properties at all levels from electron and atom to bulk over a wide pressure-temperature-composition range.