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LIN Panpan, LIN Tiesong, HE Peng, WANG Maochang, YANG Hangao. Microstructure and mechanical property of Al2O3/Ti joint with biocompatibility[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 16-23. DOI: 10.12073/j.hjxb.2019400175
Citation: LIN Panpan, LIN Tiesong, HE Peng, WANG Maochang, YANG Hangao. Microstructure and mechanical property of Al2O3/Ti joint with biocompatibility[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 16-23. DOI: 10.12073/j.hjxb.2019400175
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Microstructure and mechanical property of Al2O3/Ti joint with biocompatibility

  • 1.

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

  • 2.

    Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China

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  • Received Date: May 30, 2018
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    • Abstract
  • In this paper, the experimental materials of Al2O3 ceramic and pure Ti metal were modified by metals Mo and Ti by magnetron sputtering and brazed using Au filling metal. The effect of joining process and Ti metallizing layer thickness on the microstructure and mechanical property of the joints was investigated. The results show that the microstructure of the Al2O3/Ti joint mainly consisted of Au braze and (Au, Mo)ss. There were a few (Ti, Mo)ss and TixAuy intermetallic compounds (IMCs) among the (Au, Mo)ss. A few TiO2 and TixAuy IMCs were also observed at the Al2O3/braze interface and in the weld. The kind of phases in the weld was free from influence of bonding temperature, holding time and Ti metallizing layer thickness. However, both the number and distribution of phases in the weld change with bonding temperature, holding time and Ti metallizing layer thickness. The shear strength of joints was changed by the bonding temperature, holding time and Ti metallizing layer thickness because these factors influenced the distribution uniformity of solid solution and the number of IMCs in the weld. When the thickness of Ti metallized layer was 0.2 μm, maximum shear strength of 138 MPa was achieved at 1 080℃ for 5 min.
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    • References (12)
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