- Tytuł:
- Effect of Additives on the Densification Processes and Properties of Silica-Based CMCs
- Autorzy:
-
Ko, S.-Y.
Yong, S.-M.
Lee, S. J.
Cheong, D.-I.
Baek, S. - Powiązania:
- https://bibliotekanauki.pl/articles/355134.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
ceramic matrix composite
CMC
silica
densification
mechanical properties - Opis:
- The effect of additives on the densification behavior and mechanical properties of pure and additive (Zr, B and Mg)-added silica ceramics were investigated for their application to the matrix phase of a silica fiber reinforced silica (SiO2 /SiO2f ) composite. The additives affected the rate of densification and crystallization (or transformation) of the amorphous silica. Among the compositions, pure silica ceramics sintered at 900°C for 1h showed the maximum flexural strength. Based on the results, SiO2 /SiO2f was fabricated by a repeated vacuum-assisted infiltration method followed by the heat treatment at 900°C for 1h. The relative density of the composite was 78.2% with a flexural strength of 22.4 MPa. Fractography revealed that the composite was damaged by strong bonding at the fiber/matrix interface and the fracture of fiber.
- Źródło:
-
Archives of Metallurgy and Materials; 2018, 63, 3; 1485-1488
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł