Recent Advances in Brazing Fillers for Joining of Dissimilar Materials

Abstract

Brazing fillers for joining applications are essential for manufacturing and designing advanced materials. Several types of brazing fillers have been developed in recent decades to join similar or different engineering materials. Important parts of automotive and aircraft components, including steel, are often joined by brazing. In addition, ceramic components in microwave devices and circuits have been joined with a high level of integration in microelectronic devices. Similarly, in the medical field, metallic implants have been brazed to ceramic dental crowns. These advances have made human life more convenient. However, in brazing, there are certain issues with intermetallic compound (IMC) formation and residual stresses in joints at high temperatures. Nanoparticle-reinforced fillers have been proposed to control IMCs, but there are other dispersion and particle segregation issues at the joints. In this study, various types of brazing fillers, joint fabrication processes, and brazing technologies developed in recent decades are reviewed. Furthermore, new developments in brazing materials and their specific applications are presented. Finally, the emerging areas in brazing, including the recent entropy-modified brazing fillers for various structural and technological fields, are discussed.

Emerging Interconnection Technology and Pb-Free Solder Materials for Advanced Microelectronic Packaging

“…Finally, Ahn et al [5] overview the developments in the field of microjoining fillers for various joining applications. This article demonstrates various developments in brazing technology, and details several brazing fillers developed in the past for metallic, as well as metal, to ceramic or ceramic to ceramic, joining.…”

Effect of low-velocity impact on mechanical property and fatigue life of DP590/AA6061 self-piercing riveted joints

“…The multi-material structure designs can significantly reduce the weight of the body structures, and represent the development trend of automobile body structures. The traditional join method of multi-material structure is bolt connection [4,5]. Mechanical fasteners with bolt-nuts will inevitably encounter problems due to the uneven load distribution and stress concentration, such as loosening [6], reduced clamping force [7], and low fatigue strength [8].…”

Hot-Corrosion and Particle Erosion Resistance of Co-Based Brazed Alloy Coatings

“…Although brazing is commonly regarded as a joining technique, the following research work presents a new and innovative solution for manufacturing functional coatings. In comparison with the previously mentioned techniques where a whole chain of complex equipment is usually required, for instance, for surface roughening or post processing, the presently described technology employs a single piece of equipment and entails fewer steps [18]. The increase in the use of fillers in aerospace, for machines exposed to heavy environments or microwave device, pushes the material development [19][20][21].…”