Effect of Gold Nano Dots in Microwave Brazing: A Novel Approach to Join Ti6Al4V to MACOR®

Nano structured surface generation is useful in inducing specific functionalities to the surface. This work attempts on generation of such surface through thermal dewetting. Enhanced adhesion behavior of such surface is utilized for joining MACOR® ceramic to Ti6Al4V alloy. Ti6Al4V alloy is brazed with MACOR® by microwave energy using TiCuSil as a braze alloy. MACOR® ceramic is subjected to pre-treatment called gold dewetting. For comparison plain ceramic is also used for joining. The reaction zone formed on joining Ti6Al4V to gold dewetted MACOR® is more uniform than the untreated MACOR® ceramic interface. Energy Dispersive Spectroscopy (EDS) analysis of the reaction zone suggests the formation of Ti2Cu and Ti3Au intermetallic compounds. The shear strength of the pre-treated samples is observed to be higher than that of plain joints.

[1]  Wu Guangming,et al.  Efficient microwave welding of polypropylene using graphite coating as primers , 2018, Materials Letters.

[2]  Jun Gao,et al.  Hot Tensile Behaviors and Microstructure Evolution of Ti-6Al-4V Titanium Alloy Under Electropulsing , 2018, Acta Metallurgica Sinica (English Letters).

[3]  Su Honghua,et al.  Compressive Strength and Interface Microstructure of PCBN Grains Brazed with High-Frequency Induction Heating Method , 2017 .

[4]  S. Aravindan,et al.  An investigation on joining of Al6061-T6 to AZ31B by microwave hybrid heating using active braze alloy as an interlayer , 2017 .

[5]  S. Aravindan,et al.  Fabrication of substrate supported bimetallic nanoparticles and their optical characterization through reflection spectra , 2016 .

[6]  A. T. Sidambe,et al.  Biocompatibility of Advanced Manufactured Titanium Implants—A Review , 2014, Materials.

[7]  E. Rabkin,et al.  The role of grain boundary sliding in solid-state dewetting of thin polycrystalline films , 2014 .

[8]  Carl V. Thompson,et al.  Solid-State Dewetting of Thin Films , 2012 .

[9]  D. Agrawal,et al.  Neck growth kinetics during microwave sintering of nickel powder , 2011 .

[10]  L. X. Zhang,et al.  Interface microstructure analysis of SiO2 glass ceramic and Ti–6Al–4V alloy joint brazed with Ti–Zr–Ni–Cu alloy , 2010 .

[11]  L. X. Zhang,et al.  Vacuum brazing of SiO2 glass ceramic and Ti-6Al-4V alloy using AgCuTi filler foil , 2008 .

[12]  C. V. D. Eijk,et al.  Microwave brazing of NiTi shape memory alloy with Ag–Ti and Ag–Cu–Ti alloys , 2008 .

[13]  Masafumi Kikuchi,et al.  Elastic moduli of cast Ti-Au, Ti-Ag, and Ti-Cu alloys. , 2006, Dental materials : official publication of the Academy of Dental Materials.

[14]  N. Yoshikawa,et al.  Heating of Metal Particles in a Single-Mode Microwave Applicator , 2006 .

[15]  L. A. Rocha,et al.  Evaluation of Corrosion Resistance of Multi-Layered Ti/Glass-Ceramic Interfaces by Electrochemical Impedance Spectroscopy , 2005 .

[16]  R. Roy,et al.  Improved mechanical properties and microstructural development of microwave sintered copper and nickel steel PM parts , 2005 .

[17]  A. Fliflet,et al.  Joining of materials with millimetre-wave beam source , 2004 .

[18]  Tae-Sik Yoon,et al.  Comparison of the agglomeration behavior of Au and Cu films sputter deposited on silicon dioxide , 2003 .

[19]  L. A. Rocha,et al.  Corrosion Behaviour of Metal/Ceramic Interfaces in Physiological Solutions , 2002 .

[20]  A. Pinto,et al.  Multilayered interface in Ti/Macor® machinable glass-ceramic joints , 2001 .

[21]  N. Wakabayashi,et al.  Infrared gold alloy brazing on titanium and Ti-6Al-4V alloy surfaces and its application to removable prosthodontics. , 1999, Journal of prosthodontics : official journal of the American College of Prosthodontists.

[22]  Manuel F. Vieira,et al.  The effect of brazing temperature on the titanium/glass-ceramic bonding , 1999 .

[23]  R. Boyer.  An overview on the use of titanium in the aerospace industry , 1996 .

[24]  R. Puers,et al.  Active metal brazing for joining glass-ceramic to titanium—a study on silver enrichment , 1995 .

[25]  A. Tomsia.  Ceramic/metal joining for structures and materials , 1993 .

[26]  V. Varadan,et al.  Microwave joining and repair of composite materials , 1991 .

[27]  D. Gibbons,et al.  Biocompatibility of Macor glass ceramic. , 1980, Journal of biomedical materials research.

[28]  Yucan Fu,et al.  Compressive Strength and Interface Microstructure of PCBN Grains Brazed with High-Frequency Induction Heating Method , 2017, Acta Metallurgica Sinica (English Letters).

[29]  A. Pintoa,et al.  The effect of brazing temperature on the titanium / glass-ceramic bonding , 1999 .

[30]  H. Baker,et al.  Alloy phase diagrams , 1992 .