Journal article
The Reactivity of Ti^sub 2^AlC and Ti^sub 3^SiC^sub 2^ with SiC Fibers and Powders up to Temperatures of 1550°C
Journal of the American Ceramic Society, Vol.94(6), p1737
01 Jun 2011
Abstract
The reactivities of commercially available ... or ... powders with uncoated SiC fibers or SiC powders were evaluated in this paper. When Ti...AlC-SiC samples were hot pressed or hot isostatically pressed at temperatures up to 1500°C, fully dense composites were obtained. The latter were characterized by X-ray diffraction and electron-dispersive spectroscopy in a scanning and transmission electron microscope. Differential thermal analysis up to 1550°C was also carried out. In all cases, SiC reacted with the ... powder resulting in the formation of Ti...(...)C... TiC and ..., where x ranges from 0 to 1. In the limit x=1, pure Al forms. Conversely, ... samples, reinforced with uncoated SiC fibers or powders, can be hot pressed in vacuum at temperatures as high as 1500°C to produce fully dense composites with no apparent reaction between the matrix and fibers. Based on these results, ... can, but ... cannot, be reinforced with SiC. Such reinforcements will be needed if the MAX phases are to be used as structural materials at very high temperatures. (ProQuest: ... denotes formulae/symbols omitted.)
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Details
- Title
- The Reactivity of Ti^sub 2^AlC and Ti^sub 3^SiC^sub 2^ with SiC Fibers and Powders up to Temperatures of 1550°C
- Creators
- Charles SpencerJose CórdobaNicholas ObandoMiladin RadovicMagnus OdénLats HultmanMichel Barsoum
- Publication Details
- Journal of the American Ceramic Society, Vol.94(6), p1737
- Publisher
- Wiley Subscription Services, Inc
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Identifiers
- 991019189157404721