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Characterization of Al2O3/Al/Al2O3 Joints with Ti+Cr Interlayer

Received: 20 August 2014     Accepted: 28 August 2014     Published: 10 September 2014
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Abstract

Joints of Al2O3/Al/Al2O3 are formed by liquid – state bonding of alumina substrates covered with thin Ti+Cr film of 380 nm thickness using an Al interlayer of 30 µm at 973 K under a vacuum of 0.2 mPa applied for 5 minutes and at a pressure of 0.01 MPa. The bond strength of the joints is examined by a four – point bend testing at room temperature, coupled with optical, scanning and transmission electron microscopy. Results show that introduction of the thin Ti+Cr film layer: (i) improves plasticity in the metal layer of Al2O3/Al/Al2O3 joints, (ii) has positive effect on structure transformation in the interface and leads to fabrication of reliable metal-ceramic joints. Information obtained from the wetting characteristics of liquid Al on alumina substrate coated by thin Ti+Cr film indicates that the contact angle can be reduced to even less than 60°. Microstructural investigations of the interface of Al2O3/Ti+Cr/Al/Ti+Cr/Al2O3 joints carried out by SEM and TEM techniques indicated that the precipitates of intermetallic phases rich in both Ti and Cr as well as Al2O3 were formed at the Al/Al2O3 interface, which influenced strengthening of these joints. Hence a conclusion can be drawn that the interface structure influences the mechanical durability increase in Al/Al2O3 joints.

Published in International Journal of Materials Science and Applications (Volume 3, Issue 5)
DOI 10.11648/j.ijmsa.20140305.14
Page(s) 152-158
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Metal–Ceramic Joining, Liquid State Bonding, Bond Strength, Fracture Interface

References
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[4] N. Sobczak, R. Asthana, M. Ksiazek, W. Radziwill, B. Mikulowski, Metall. Mater. Trans., 35A(2004) 911-921.
[5] G. Ceccone, M.G. Nicholas, S.D. Peteves , A.P. Tomsia, B.J. Dalgleish, A.M. Glaeser, Acta Mater, 44(1996)657-667.
[6] J.X. Zhang, R.S. Chande, H.P. Seow, Mater. Chem. Phys., 75(2002)256-259.
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[8] A. Strecker, U. Salzberger, J. Mayer, Prakt. Metalogr., 30 (1993)482-495.
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[10] T.J. Jewett, M. Dahms, Z. Metallkd., 87(1997)254-261.
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  • APA Style

    Marzanna, Maria Ksiazek, Maria, Wieslawa Richert, Lukasz, et al. (2014). Characterization of Al2O3/Al/Al2O3 Joints with Ti+Cr Interlayer. International Journal of Materials Science and Applications, 3(5), 152-158. https://doi.org/10.11648/j.ijmsa.20140305.14

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    ACS Style

    Marzanna; Maria Ksiazek; Maria; Wieslawa Richert; Lukasz, et al. Characterization of Al2O3/Al/Al2O3 Joints with Ti+Cr Interlayer. Int. J. Mater. Sci. Appl. 2014, 3(5), 152-158. doi: 10.11648/j.ijmsa.20140305.14

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    AMA Style

    Marzanna, Maria Ksiazek, Maria, Wieslawa Richert, Lukasz, et al. Characterization of Al2O3/Al/Al2O3 Joints with Ti+Cr Interlayer. Int J Mater Sci Appl. 2014;3(5):152-158. doi: 10.11648/j.ijmsa.20140305.14

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  • @article{10.11648/j.ijmsa.20140305.14,
      author = {Marzanna and Maria Ksiazek and Maria and Wieslawa Richert and Lukasz and Rafal Boron and Adam Tchorz},
      title = {Characterization of Al2O3/Al/Al2O3 Joints with Ti+Cr Interlayer},
      journal = {International Journal of Materials Science and Applications},
      volume = {3},
      number = {5},
      pages = {152-158},
      doi = {10.11648/j.ijmsa.20140305.14},
      url = {https://doi.org/10.11648/j.ijmsa.20140305.14},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20140305.14},
      abstract = {Joints of Al2O3/Al/Al2O3 are formed by liquid – state bonding of alumina substrates covered with thin Ti+Cr film of 380 nm thickness using an Al interlayer of 30 µm at 973 K under a vacuum of 0.2 mPa applied for 5 minutes and at a pressure of 0.01 MPa. The bond strength of the joints is examined by a four – point bend testing at room temperature, coupled with optical, scanning and transmission electron microscopy. Results show that introduction of the thin Ti+Cr film layer: (i) improves plasticity in the metal layer of Al2O3/Al/Al2O3 joints, (ii) has positive effect on structure transformation in the interface and leads to fabrication of reliable metal-ceramic joints. Information obtained from the wetting characteristics of liquid Al on alumina substrate coated by thin Ti+Cr film indicates that the contact angle can be reduced to even less than 60°. Microstructural investigations of the interface of Al2O3/Ti+Cr/Al/Ti+Cr/Al2O3 joints carried out by SEM and TEM techniques indicated that the precipitates of intermetallic phases rich in both Ti and Cr as well as Al2O3 were formed at the Al/Al2O3 interface, which influenced strengthening of these joints. Hence a conclusion can be drawn that the interface structure influences the mechanical durability increase in Al/Al2O3 joints.},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - Characterization of Al2O3/Al/Al2O3 Joints with Ti+Cr Interlayer
    AU  - Marzanna
    AU  - Maria Ksiazek
    AU  - Maria
    AU  - Wieslawa Richert
    AU  - Lukasz
    AU  - Rafal Boron
    AU  - Adam Tchorz
    Y1  - 2014/09/10
    PY  - 2014
    N1  - https://doi.org/10.11648/j.ijmsa.20140305.14
    DO  - 10.11648/j.ijmsa.20140305.14
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 152
    EP  - 158
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20140305.14
    AB  - Joints of Al2O3/Al/Al2O3 are formed by liquid – state bonding of alumina substrates covered with thin Ti+Cr film of 380 nm thickness using an Al interlayer of 30 µm at 973 K under a vacuum of 0.2 mPa applied for 5 minutes and at a pressure of 0.01 MPa. The bond strength of the joints is examined by a four – point bend testing at room temperature, coupled with optical, scanning and transmission electron microscopy. Results show that introduction of the thin Ti+Cr film layer: (i) improves plasticity in the metal layer of Al2O3/Al/Al2O3 joints, (ii) has positive effect on structure transformation in the interface and leads to fabrication of reliable metal-ceramic joints. Information obtained from the wetting characteristics of liquid Al on alumina substrate coated by thin Ti+Cr film indicates that the contact angle can be reduced to even less than 60°. Microstructural investigations of the interface of Al2O3/Ti+Cr/Al/Ti+Cr/Al2O3 joints carried out by SEM and TEM techniques indicated that the precipitates of intermetallic phases rich in both Ti and Cr as well as Al2O3 were formed at the Al/Al2O3 interface, which influenced strengthening of these joints. Hence a conclusion can be drawn that the interface structure influences the mechanical durability increase in Al/Al2O3 joints.
    VL  - 3
    IS  - 5
    ER  - 

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Author Information
  • Foundry Research Institute, Complex of research Laboratories, Cracow, Poland

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