Deformation experiments using synchrotron X-rays: In situ stress and strain measurements at high pressure and temperature Article

Chen, J, Li, L, Weidner, D et al. (2004). Deformation experiments using synchrotron X-rays: In situ stress and strain measurements at high pressure and temperature . PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 143(1-2), 347-356. 10.1016/j.pepi.2003.09.021

cited authors

  • Chen, J; Li, L; Weidner, D; Vaughan, M

authors

abstract

  • An experimental technique for in situ stress and strain measurements at high pressure and temperature using synchrotron X-rays has been developed at the X17B beamline of the National Synchrotron Light Source. The strain is measured by correlating sample-length marks in recorded X-ray radiographs. The stress is measured by simultaneously collecting energy-dispersive X-ray diffraction patterns of the sample in two perpendicular diffraction planes. Differential stress in the sample is derived from the different lattice strains along the different orientations relative to principal stress direction. Example measurements are conducted to study rheological properties of fayalite. Accuracy of the measurement is about 10-100 MPa for stress and about 10-4 for strain. © 2004 Elsevier B.V. All rights reserved.

publication date

  • June 15, 2004

published in

Digital Object Identifier (DOI)

start page

  • 347

end page

  • 356

volume

  • 143

issue

  • 1-2