High-Pressure Geochemistry, Petrology and Mineral Physics Laboratory

Relevant Experimental Projects

  • In-situ studies of minerals and fluids at pressures up to 100 GPa.
  • Studies of reactions (kinetics and equilibrium) between minerals, melts and fluids.
  • PVT equation of state determinations.
  • Synchrotron X-ray studies of minerals at elevated temperatures and pressures.
  • Solubility studies at extreme pressures and temperatures.
  • Crystal growth studies in fluids and melts.

Experimental Equipment

  • Hydrothermal Diamond Anvil Cells (3).
  • Symmetric Diamond Anvil Cells (3).
  • Ruby Fluorescence Pressure System.
  • High-temperature workstation with video and photographic capabilities.
  • EDM.

Hydrothermal Diamond Anvil Cells (3)

  • Capable of studies up to 25 GPa and 1000°C.
  • Can also be used for cryogenic studies.
  • Chromel heaters are wrapped around each diamond.
  • A type K thermocouple is placed directly against each diamond.
  • Ar (99%) – H (1%) gas flow is required for high-temperature operation.

High-temperature Workstation with Video and Photographic Capabilities for Hydrothermal Diamond Anvil Cell Experiments

  • Capable of studies up to 25 GPa and 1000°C.
  • Mastech triple DC linear power supply (0-30V at 0-10 Amps).
  • ½” CCD high-resolution color video camera with on-screen menu.
  • Visual Inspector image capture and annotation software.
  • HH509 dual digital thermometer with RS-232 interface and software.

Symmetric Diamond Anvil Cells (3)

Capable of studies in high-pressure (>100 GPa) and high-temperature (>3000°C when coupled with laser heating) experiments.

E.D.M.

Our micro-drill can drill 90–600 micrometer holes in Rhenium, Inconel, René 41, stainless steel, etc.

Ruby Fluorescence Pressure System

  • Designed to measure ruby fluorescence so as to ascertain the pressure within a diamond anvil cell.
  • 532 nm laser.
  • TE cooled linear CCD array spectrometer.

Diamond Anvil Cell Set-up for In-situ Synchrotron X-ray Studies at the Advanced Photon Source at Argonne National Laboratory 

My research group has conducted numerous experiments at synchrotrons around the world:

  • APS (Argonne, IL).
  • NSLS (Brookhaven, Upton, NY).
  • SPring 8 (Japan).
  • CHESS (Cornell University, Ithaca, NY).

Contact Us

Department of Earth, Atmosphere and Environment
Davis Hall, Room 312

815-753-1943 (undergraduate)
815-753-0631 (graduate)

815-753-1945 (fax)
askeae@niu.edu

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