Characterization of Al/Ti Nano Multilayer as a Jointing Material at the Interface between Cu and Al2O3

In this paper, a series of Al/Ti multilayers with different modulation periods were used in copper and Al2O3 ceramic diffusion bonding. The reactive multilayer was deposited by DC magnetron sputtering, and the diffusion bonding experiments were performed at 900°C for 10 min with a pressure of 5 MPa. The interfacial joints were inspected by scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDS), X-ray diffraction and tensile shear tests. As a result, no signi cant metallurgical defect was observed in the microstructures of the joints. The formation of several intermetallic compounds at the interface, such as Cu/Ti eutectic and Al2O3-X·TiO compound, has further con rmed the success of Cu-Al2O3 bonding as compared to the Al/Ni nano-multilayers, which use Al/Ti nano-foils as interlayer for diffusion bonding to bring more bene t to the quality of cermet joint. [doi:10.2320/matertrans.M2016126]

[1]  W. Xinxin,et al.  Characterization of Al/Ni Nanoscale Multilayer Used for Transient-Liquid-Phase Bonding of Copper and Al2O3 Ceramic , 2014 .

[2]  Y. P. Zhang,et al.  Diffusion Bonding of Cu–Cu with Al–Ni Nano Multilayers , 2013 .

[3]  J. Kovač,et al.  Laser-induced formation of intermetallics in multilayered Al/Ti nano-structures , 2012, Journal of Materials Science.

[4]  N. Hosseinabadi,et al.  Alumina–copper joining by the sintered metal powder process , 2010 .

[5]  E. Dreizin,et al.  Metal-based reactive nanomaterials , 2009 .

[6]  A. K. Ray,et al.  Effect of interfacial thickness and residual stress on the mechanical property of the alumina–stainless steel braze joint interface , 2008 .

[7]  A. K. Ray,et al.  Characterization of interface of Al2O3–304 stainless steel braze joint , 2007 .

[8]  A. K. Ray,et al.  Characterization of Al2O3–304 stainless steel braze joint interface , 2007 .

[9]  A. Meier,et al.  Reaction kinetics and mechanical properties in the reactive brazing of copper to aluminum nitride , 2006 .

[10]  Soon Hyung Hong,et al.  Intermixing criteria for reaction synthesis of Ni/Al multilayered microfoils , 2006 .

[11]  G. Qiao,et al.  Active brazing of pure alumina to Kovar alloy based on the partial transient liquid phase (PTLP) technique with Ni–Ti interlayer , 2002 .

[12]  N. Sobczak,et al.  Wetting and bonding strength in Al/Al2O3 system , 2002 .

[13]  D. N. Travessa,et al.  Al2O3/Ti interlayer/AISI 304 diffusion bonded joint: Microstructural characterization of the two interfaces , 2001 .