Thermal Analysis in EES-1
We have several approaches to examining the behavior of materials as a function of temperature. These include the following:
DuPont Differential Scanning Calorimeter. This instrument records heat capacity and enthalpy of reaction as a function of temperature between about -170 and 725 C. It can operate isothermally or at a variety of scan rates. It is equipped to conduct analyses under controlled-flow atmosphere. It also has the capacity to operate at applied pressures from 15 to 2000 psi.
DuPont Thermogravimetric Analyzer: This instrument records the mass of material as a function of temperature between 20 and 1000 C. It can operate isothermally or at a variety of scan rates. The instrument is equipped with a controlled-flow through apparatus. Example results for the zeolite clinoptilolite are shown above, in which clinoptilolite was equilibrated at a number of water-vapor pressures at temperatures from 25 to 248 oC.
Fisons Quadropole Mass Spectrometer: This instrument interfaces with the DuPont Thermogravimetric Analyzer to provide analyses of gas compositions evolving from sample material as a function of temperature.
Ovens and furnaces: We have several ovens and furnaces with an operating range to 1000 oC. These are equipped with Parr and Savilex hydrothermal pressure vessels for conducting hydrothermal experiments at temperatures up to 250 oC.
For more information contact:
Bill Carey (505- 667-5540 or bcarey@lanl.gov)