Superplastic joining of alumina and zirconia ceramics

Al 2O 3/ZrO 2 composites with from 0 to 100% ZrO 2 content were bonded by superplasic flow at 1280, 1350 and 1400 °C under the pressure 30 or 50 MPa during the time from several min to several hours. FGM joints between Al 2O 3 and ZrO 2 parts and joints between non-superplastic coarse grained alumin...

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Bibliographic Details
Published in:Journal of the European Ceramic Society 2007, Vol.27 (2), p.1351-1355
Main Authors: Boniecki, Marek, Kaliński, Dariusz, Librant, Zdzisław, Wesołowski, Władysław
Format: Article
Language:English
Subjects:
Al 2O 3
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Cermets, ceramic and refractory composites
Chemical industry and chemicals
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Joining
Joining
welding
Materials science
Materials synthesis
materials processing
Miscellaneous
Other materials
Physics
Specific materials
Strength
Superplasticity
Technical ceramics
ZrO 2
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Summary:Al 2O 3/ZrO 2 composites with from 0 to 100% ZrO 2 content were bonded by superplasic flow at 1280, 1350 and 1400 °C under the pressure 30 or 50 MPa during the time from several min to several hours. FGM joints between Al 2O 3 and ZrO 2 parts and joints between non-superplastic coarse grained alumina bars with aid of thin superplastic plates were also obtained. All the joints were pore-free and strong. For Δ α > 1 × 10 −6 °C −1 cracks parallel to interface arose near the joint. Residual stress distribution was evaluated by finite-element and Vickers indentation analysis. The calculations revealed that critical tensile stresses appeared only in perpendicular direction to the interface.
ISSN:0955-2219
1873-619X
DOI:10.1016/j.jeurceramsoc.2006.05.055