| EPSRC Reference: |
GR/H70430/01 |
| Title: |
CHARACTERISATION OF SUB-SURFACE DAMAGE IN CERAMIC MATRIX COMPOSITES BY CONFOCAL LASER SCANNING MICROSCOPY |
| Principal Investigator: |
Yeomans, Professor JA |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Sch of Electronics & Physical Sciences |
| Organisation: |
University of Surrey |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
28 January 1993 |
Ends: |
27 January 1996 |
Value (£): |
207,957
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Construction |
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Summary on Grant Application Form |
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Ceramic and ceramic matrix composite materials are used, or are targeted for use, in many applications in which they are subjected to small-scale contact events eg erosion, abrasion and machining. Indentations by hard, sharp particles causes surface and sub-surface damage. Cracks forming parallel to but below the surface are particularly detrimental since if they extend and intersect the surface they will lead to loss of material. Sub-surface damage has been characterised in a number of simple, nomolithic ceramics, most notably glass, but there is a sparsity of data pertaining to composite systems and more complex monolithics. This project has the dual aims of characterising sub-surface damage in eight commercially important materials and assessing the ability of confocal laser scanning microscopy (CLSM) to image sub surface damage. The successful use of CLSM will be an enormous advantage since it will allow rapid, non-destructive evaluation of sub-surface fracture patterns. Results from the characterisation of the damage, presented in the form of an atlas, will be of direct relevance to the understanding of the more complex phenomena of erosion, abrasion and machine damage. Evaluation of the CLSM technique and the provision of a table of imaging depths will provide invaluable reference data for all manufacturers and users of ceramic materials who wish to assess sub-surface damage.
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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.surrey.ac.uk |