Skip to main content
×
×
Home

Dynamic observations of dislocation/grain-boundary interactions in ice

  • I. Baker (a1), F. Liu (a1), K. Jia (a1), X. Hu (a1), D. Cullen (a1) and M. Dudley (a2)...
Abstract

Dislocation/grain-boundary (GB) interactions have been studied in situ in polycrystalline ice using synchrotron X-ray topography in the temperature range 0° to –15°C GBs were observed to act both as sources of lattice dislocations and as strong obstacles to dislocation motion. Dislocations were observed to form pile-ups at GBs upon loading. Generally the basal slip system with the highest Schmid factor was found to be the most active, and dislocations were emitted from GB facets as semi-hexagonal loops in order to relieve the stress build-up from GB sliding. When the relative orientation of two adjacent grains and the orientation of the GB between them with respect to the loading direction discouraged GB sliding, thus suppressing dislocation nucleation at the GB, dislocations originating in one grain piled up at the GB and led to slip transmission through the GB The latter geometrical arrangement is rarely encountered, suggesting that slip transmission through grain boundaries in ice is a rare event. When basal slip was suppressed, i.e. when the loading direction lay in the basal plane, slip occurred by the glide of a fast edge segment on non-basal planes.

  • View HTML
    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Dynamic observations of dislocation/grain-boundary interactions in ice
      Available formats
      ×
      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Dynamic observations of dislocation/grain-boundary interactions in ice
      Available formats
      ×
      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Dynamic observations of dislocation/grain-boundary interactions in ice
      Available formats
      ×
Copyright
References
Hide All
Ahmad, S. and Whitworth, R.W.. 1988. Dislocation motion in ice: a study by synchrotron X-ray topography. Philos. Mag. A, 57(5), 749–766.
Ahmad, S., Ohtomo, M. and Whitworth, R.W.. 1986. Observation of a dislocation source in ice by synchrotron radiation X-ray topography. Nature, 319(6055), 659–660.
Ahmad, S., Ohtomo, M. and Whitworth, R. W.. 1987 A study of dislocation glide in ice by synchrotron radiation X-ray topography. J. Phys. (Paris), 48, Colloq. CI, 175–181. (Supplement au 3.)
Ahmad, S., Shearwood, C. and Whitworth, R.W.. 1992. Dislocation multiplication mechanisms in ice. In Maeno, N. and Hondoh, T., eds. Proceedings of the International Symposium on the Physics and Chemistry of lee, Sapporo, Japan. Sapporo, Hokkaido University Press, 492–496.
Hayes, C. E. and Webb, WW.. 1965. Dislocations in ice. Science, 147, 44–45.
Higashi, A. 1978. Structure and behaviour of grain boundaries in polycrystalline ice. J. Glaciol., 21(85), 589–605.
Higashi, A. 1988. Lattice defects in tee crystals: X-ray topographic observations. Sapporo, Japan, Hokkaido University Press.
Hondoh, T. 1986. In-situ X-ray topographic observations of stress concentrations at a serrated grain boundary in ice under deformation, grain boundary structure and related phenomena. Trans. Jpn. Inst. Met, Supplement 27, 723–729. (Proceedings of JIMIS-4.)
Hondoh, T. 1988. Observations of large-angle grain boundaries in ice crystals. In Higashi, A., ed. Lattice defects in ice crystals; X-ray topographic observations. Sapporo, Hokkaido University Press, 129–146.
Hondoh, T. 1992. Glide and climb processes of dislocations in ice. In Maeno, N. and Hondoh, T., eds. Proceedings of the International Symposium on the Physics and Chemistry of Ice, Sapporo, Japan. Sapporo, Hokkaido University Press, 481–487.
Hondoh, T. and Higashi, A.. 1978. X-ray diffraction topographic observations of the large-angle grain boundary in ice under deformation. J. Glaciol., 21 (85), 629–638.
Hondoh, T. and Higashi, A.. 1979. Anisotropy of migration and faceting of large-angle grain boundaries in ice bicrystals. Philos. Mag. A, 39(2), 137–149.
Hondoh, T. and Higashi, A.. 1983. Generation and absorption of dislocations at large-angle grain boundaries in deformed ice crystals. J. Phys. Chem., 87(21), 4044–4050.
Hondoh, T., Iwamatsu, H. and Mae, S.. 1990. Dislocation mobility for non-basal glide in ice measured by in situ X-ray topography. Philos. Mag. A, 62(1), 89–102.
Hu, X., Jia, K., Liu, P., Baker, I. and Black, D.. 1995. Dislocation mobility in HC1–doped ice. Materials Research Society Symposium Proceedings, 375, 287–292.
Jia, K., Baker, I., Liu, F. and Dudley, M.. 1996. Observation of slip transmission through a grain boundary in ice. J. Mater. Sci., 31(9), 2373–2378.
Liu, F. and Baker, I.. 1993. A compression jig for X-ray topography of ice. Measurement Science and Technology, 4(3), 416–421.
Liu, F and Baker, I.. 1994. Synchrotron X-ray topographic studies of grain boundaries. Microscopy Society of America Bulletin, 24(1), 351–358.
Liu, F., Baker, I., Yao, G. and Dudley, M.. 1992a. Dislocations and grain boundaries in polycrystalline ice: a preliminary study by synchrotron X-ray topography. J. Mater. Sci., 27(10), 2719–2725.
Liu, F., Baker, I., Yao, G. and Dudley, M.. 1992b. Dynamic observations of dislocation sources at grain boundaries in ice. Philos. Mag. Lett., 65(5), 279–281.
Liu, F P., Baker, I. and Dudley, M.. 1995. Dislocation/grain boundary interactions in ice crystals. Philos. Mag. A, 71(1), 15–42.
Shearwood, C. and Whitworth, R. W.. 1989. X-ray topographic observations of edge dislocation glide on non-basal planes in ice. J. Glaciol., 35(120), 281–283.
Shearwood, C. and Whitworth, R.W.. 1991. The velocity of dislocations in ice. Philos. Mag. A, 64(2), 289–302.
Shearwood, C. and Whitworth, R.W.. 1992. The velocity of dislocations in crystals of HCl-doped ice. Philos. Mag. A, 65(1), 85–89.
Shearwood, C. and Whitworth, R.W.. 1993. Novel processes of dislocation multiplication observed in ice. Acta Metall. Matenalia, 41 (1), 205–210.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Annals of Glaciology
  • ISSN: 0260-3055
  • EISSN: 1727-5644
  • URL: /core/journals/annals-of-glaciology
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 5
Total number of PDF views: 19 *
Loading metrics...

Abstract views

Total abstract views: 24 *
Loading metrics...

* Views captured on Cambridge Core between 14th September 2017 - 19th June 2018. This data will be updated every 24 hours.