Development of carbonaceous tin-based solder composite achieving unprecedented joint performance
Goel, S., Burda, M. and Yazdani Nezhad, H. (2021). Development of carbonaceous tin-based solder composite achieving unprecedented joint performance . Emergent materials.
|Authors||Goel, S., Burda, M. and Yazdani Nezhad, H.|
Weight reduction and improved strength are two common engineering goals in the joining sector to benefit transport, aerospace, nuclear industries among others. Here, in this paper, we show that the suitable addition of carbon nanomaterials to a tin-based solder material matrix (C-Solder® supplied by Cametics Ltd.) results in two-fold strength of soldered composite joints. Single-lap shear joint experiments were conducted on soldered aluminium alloy (6082 T6) substrates. The soldering material was reinforced in different mix ratios by carbon black, graphene and single-walled carbon nanotubes (SWCNT) and benchmarked against the pristine C-solder®. The material characterisation was performed using Vickers micro-indentation, differential scanning calorimetry and nano-indentation whereas functional testing involved mechanical shear tests using single-lap aluminium soldered joints and creep tests. The hardness was observed to improve in all cases except for the 0.01 wt% graphene reinforced solders, with 5% and 4% improvements in 0.05 carbon black and SWCNT reinforced solders, respectively. The maximum creep indentation was noted to improve for all solder categories with maximum 11% and 8% improvements in 0.05 wt.% carbon black and SWCNT reinforced ones. In general, the 0.05 wt.% nanomaterials reinforced solders promoted progressive cohesion failure in the joints as opposed to instantaneous fully de-bonded failure observed in pristine soldered joints, which suggests potential application in high performance structures where no service load induced adhesion failure is permissible (e.g., aerospace assemblies). The novel innovation developed here will pave the way to achieving high-performance solder joining without carrying out extensive surface preparations.
|Web address (URL)||https://www.springer.com/journal/42247/aims-and-scope|
|Publication process dates|
|Accepted||09 Dec 2021|
|Deposited||21 Dec 2021|
|Accepted author manuscript|
File Access Level
Accepted author manuscript
1views this month
0downloads this month