Conference item
The mechanical properties of tungsten grown by chemical vapour deposition
- Abstract:
- The mechanical properties of polycrystalline tungsten grown by chemical vapour deposition (CVD) have been investigated. Fracture tests were performed on the material over the 24-967 °C temperature range at a low strain rate. The material was found to be brittle or semi-brittle across the entire temperature range investigated. This behaviour differs significantly from that previously found in conventionally-grown polycrystalline tungsten, which, under similar experimental conditions, is found to be ductile above approximately 120 °C. Energy dispersive X-ray analysis indicates that in the CVD tungsten, there is a significant concentration of fluorine at grain boundaries. It is therefore suggested that fluorine segregation to grain boundaries is responsible for the increased brittleness observed in the CVD tungsten.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, pdf, 410.1KB, Terms of use)
-
- Publisher copy:
- 10.1016/j.jnucmat.2008.12.182
Authors
- Publisher:
- Elsevier
- Host title:
- Journal of Nuclear Materials
- Volume:
- 386-88
- Issue:
- C
- Pages:
- 583-586
- Publication date:
- 2009-01-01
- DOI:
- ISSN:
-
0022-3115
- Pubs id:
-
pubs:28152
- UUID:
-
uuid:1c339a48-6f0c-435e-bcfc-03e4fc792e3c
- Local pid:
-
pubs:28152
- Source identifiers:
-
28152
- Deposit date:
-
2012-12-19
- ARK identifier:
Terms of use
- Copyright holder:
- Elsevier BV
- Copyright date:
- 2009
- Notes:
- © 2008 Elsevier B.V. All rights reserved. Proceedings of the Thirteenth International Conference on Fusion Reactor Materials. NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Nuclear Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Nuclear Materials, [386–388, 30 April 2009)] http://dx.doi.org/10.1016/j.jnucmat.2008.12.182
If you are the owner of this record, you can report an update to it here: Report update to this record