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Preparation of silicon-based oxide layer on high-crystalline SiC fiber as an interphase in SiC/SiC composites
- Source :
- Journal of Nuclear Materials. :554-557
- Publication Year :
- 2004
- Publisher :
- Elsevier BV, 2004.
-
Abstract
- New silicon-based oxide layers, SiO 2 and SiO 2 –MgO, as the interfacial materials of SiC/SiC composites were prepared on Hi-Nicalon Type S SiC fiber by sol–gel method. The fibers were completely coated by only dipping twice in a coating solution of [Si]=1.0 mol/dm 3 or that of [Mg]=0.50 mol/dm 3 and [Si]=0.25 mol/dm 3 . These coated layers were amorphous up to 1200 °C for the SiO 2 coated fibers, or consisted of a mixture of SiO 2 and Mg x Si z O up to 1400 °C in SiO 2 –MgO coated fibers. The tensile strength of coated Hi-Nicalon Type S SiC fiber after heating at 1200 °C was similar to that of unheated Hi-Nicalon Type S SiC fiber without heating and was reduced by 15% after heating to 1400 °C.
- Subjects :
- Nuclear and High Energy Physics
Materials science
Silicon
Oxide
chemistry.chemical_element
engineering.material
Amorphous solid
chemistry.chemical_compound
Nuclear Energy and Engineering
Coating
chemistry
Ultimate tensile strength
engineering
Silicon carbide
General Materials Science
Interphase
Composite material
Layer (electronics)
Subjects
Details
- ISSN :
- 00223115
- Database :
- OpenAIRE
- Journal :
- Journal of Nuclear Materials
- Accession number :
- edsair.doi...........5cf4cc8dfb48b699e3ada659f6bb5ef1
- Full Text :
- https://doi.org/10.1016/j.jnucmat.2004.04.116