Abstract
Diffusion bonds of Pd/ZrO2 and Pd/Al2O3 made in vacuum at 1100°C 10 MPa have been studied. Their strengths measured by four-point bend tests show strong bonding occurred in the Pd/ZrO2 bands. Investigation of published phase diagrams suggested this to be due to an eutectic reaction between Pd and ZrO2. The existence of such a reaction was further characterised by optical and electron microscopy (TEM). Possible eutectic temperatures were found at 707 and 890° by differential thermal analysis (DTA).
TEM results of Pd/Al2O3 found no reaction layer between these two materials. This possibly explains the low strengths of these diffusion bonds.
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© 1991 Elsevier Science Publishers Ltd
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Qin, CD., Derby, B. (1991). Interfaces in Metal/Ceramic Diffusion Bonds. In: Stephenson, D.J. (eds) Diffusion Bonding 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3674-7_18
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DOI: https://doi.org/10.1007/978-94-011-3674-7_18
Publisher Name: Springer, Dordrecht
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