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Joining of SiC ceramics by combining NITE-SiC interlayer and its thickness control.
- Source :
-
Journal of the European Ceramic Society . Jul2023, Vol. 43 Issue 8, p3070-3076. 7p. - Publication Year :
- 2023
-
Abstract
- Combined with the thickness control of interlayers (∼10 µm and ∼60 µm), SiC nano-powders with Al 2 O 3 -Y 2 O 3 -MgO-CaO additive (NITE-SiC) were used as the joining materials to achieve the low-temperature joining of SiC ceramics. Some residual pores were observed in the interlayer with a thickness of ∼60 µm after joining at 1650 ℃, and the shear strength of SiC joints measured was 39.3 ± 5.5 MPa. Observations showed the fracture of joints occurred at the interlayer. When the thickness of the interlayer decreased to ∼10 µm, no cracks or porosity were observed at the interface region after joining at 1650 ℃. The shear strength of SiC joints increased to 69.5 ± 8.9 MPa, and the fracture originated from the matrix. The results demonstrated using NITE-SiC with Al 2 O 3 -Y 2 O 3 -MgO-CaO additive as the joining layer and reducing the thickness of the interlayer could lower the joining temperature and significantly improve the mechanical strength of joints. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CERAMICS
*ALUMINUM oxide
*SHEAR strength
Subjects
Details
- Language :
- English
- ISSN :
- 09552219
- Volume :
- 43
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Journal of the European Ceramic Society
- Publication Type :
- Academic Journal
- Accession number :
- 162392034
- Full Text :
- https://doi.org/10.1016/j.jeurceramsoc.2023.01.024