| EPSRC Reference: |
GR/M49816/01 |
| Title: |
NOVEL DYNAMIC THERMOMECHANICAL X-RAY DIFFRACTOMETER |
| Principal Investigator: |
Redfern, Professor S |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Earth Sciences |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
27 September 1999 |
Ends: |
26 September 2002 |
Value (£): |
299,784
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| EPSRC Research Topic Classifications: |
| Condensed Matter Physics |
Instrumentation Eng. & Dev. |
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| EPSRC Industrial Sector Classifications: |
| Manufacturing |
Energy |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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We propose constructing an instrument capable of simultaneous stroboscopic X-ray diffraction and dynamic mechanical analysis at temperatures up to 1000 degrees C and as a function of frequency of applied load in the regime 10 mHz to 100 Hz. It will be used to study time-temperature transformations over a wide range of frequencies. We will exploit its characteristics to investigate the isothermal elastic response of quartz, KCN, spinel, steel, and other ferroelastic materials, at and near phase transitions while simultaneously measuring the X-ray scattering from the bulk (to determine the essential thermodynamic parameter: the order parameter_ as well as any diffuse intensity associated with domain walls, at elevated temperatures. We will make time-dependent annealing experiments in which the kinetics of elastic compliance changes of materials will be directly understood in terms of the changes in structure of one or more phases in the sample, which are revealed by the diffraction pattern, collected simultaneously. The instrument will provide measurement of the T-dependence of the bending of pinned domain walls as they respond to a fluctuating applied stress.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cam.ac.uk |