Sökning: onr:"swepub:oai:DiVA.org:ri-13381" >
Development of micr...
Development of microstructure during creep of polycrystalline mullite and a nanocomposite mullite/5 vol.% SiC
-
- Gustafsson, Stefan, 1976 (författare)
- Chalmers University of Technology,Chalmers tekniska högskola
-
- Falk, Lena, 1956 (författare)
- Chalmers University of Technology,Chalmers tekniska högskola
-
- Pitchford, J.E. (författare)
- University of Cambridge
-
visa fler...
-
- Clegg, W.J. (författare)
- University of Cambridge
-
- Lidén, Eva (författare)
- RISE,IVF
-
- Carlström, Elis (författare)
- RISE,IVF
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2009
- 2009
- Engelska.
-
Ingår i: Journal of the European Ceramic Society. - : Elsevier BV. - 0955-2219 .- 1873-619X. ; 29:4, s. 539-550
- Relaterad länk:
-
http://www.sciencedi...
-
visa fler...
-
http://dx.doi.org/10...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://research.cha...
-
visa färre...
Abstract
Ämnesord
Stäng
- The microstructures of as-sintered and creep tested polycrystalline mullite and mullite reinforced with 5 vol.% nano-sized SiC particles have been characterized by scanning and transmission electron microscopy. The dislocation densities after tensile creep testing at 1300 and 1400 °C were virtually unchanged as compared to the as-sintered materials which indicates diffusion-controlled deformation. Mullite matrix grain boundaries bending around intergranular SiC particles suggest that grain boundary pinning, in addition to a reduced mullite grain size, contributed to the increased creep resistance of the mullite/5 vol.% SiC nanocomposite. Both materials showed pronounced cavitation at multi-grain junctions after creep testing at 1400 °C which suggests that unaccommodated grain boundary sliding, facilitated by softening of the intergranular glass, occurred at this temperature. This is consistent with the higher stress exponents at 1400 °C. © 2008 Elsevier Ltd. All rights reserved.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- Creep
- Electron microscopy
- Grain boundaries
- Mullite
- Nanocomposites
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas