Journal article
Measuring fracture toughness of coatings using FIB-machined microbeams
- Abstract:
- Measuring the toughness of brittle coatings has always been a difficult task. Coatings are often too thin to easily prepare a freestanding sample of a defined geometry to use standard toughness measuring techniques. Using standard indentation techniques gives results influenced by the effect of the substrate. A new technique for measuring the toughness of coatings is described here. A precracked micro-beam was produced using focused ion beam (FIB) machining, then imaged and loaded to fracture using a nanoindenter. © 2005 Materials Research Society.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Authors
- Publisher:
- Cambridge University Press
- Journal:
- journal of Materials Research More from this journal
- Volume:
- 20
- Issue:
- 02
- Pages:
- 299-302
- Publication date:
- 2005-02-01
- DOI:
- EISSN:
-
2044-5326
- ISSN:
-
0884-2914
- Language:
-
English
- Pubs id:
-
pubs:27474
- UUID:
-
uuid:eba76d2d-3cbe-4846-a5cc-dfe83a44e89e
- Local pid:
-
pubs:27474
- Source identifiers:
-
27474
- Deposit date:
-
2012-12-19
Terms of use
- Copyright holder:
- Materials Research Society
- Copyright date:
- 2005
- Notes:
- The first use of micromechanical methods to measure the fracture toughness of thin films directly. This key property of thin wear and erosion resistant films is not otherwise obtainable. The new technique has wide applicability in testing fine scale mechanical properties and has initiated a wide range of new projects on engineering alloys, biomaterials (Harefields Hospital) and particularly on radiation resistant materials with UKAEA Culham for fusion applications [[email protected]]. Copyright Materials Research Society
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