Microstructure refining of a Mo-Ni brazing filler by nanoparticles doping

D. P. Sekulic, H. Fu, A. Rabinkin, D. Busbaher, E. Leone, T. Preuss

Research output: Contribution to journalArticlepeer-review


A hypothesis has been introduced that a doping by SiC nanoparticles of a binary eutectic Mo-Ni brazing filler metal may impact the mechanical properties of the formed brazed joint. It was conjectured that the microstructure of the solidified brazement would be refined via doping, thus leading to the enhancement in mechanical integrity of the joint vs. a nondoped material system. The paper provides evidence of a marked shear stress improvement with doping vs. a nondoped system. The changes in the joint's mechanical properties are attributed to this newly discovered dramatic microstructure refinement of the solidified fillers doped with SiC.

Original languageEnglish
Pages (from-to)11s-20s
JournalWelding Journal
Issue number1
StatePublished - Jan 2017

Bibliographical note

Funding Information:
The work of the lead authors has been supported in part through U.S. NSF Grant CBET #1234581. The authors acknowledge in-kind support from Ceradyne, Inc. (formerly Semicon Associates), a 3M Company. The first author acknowledges support by the 1000 Plan Foreign Expert Distinguished Professor program at the Harbin Institute of Technology, Harbin, China. Dr. Liu Wen, currently of Delphi Advanced Thermal Systems, Lockport, N.Y., contributed to the study in its early stage at the University of Kentucky Brazing Laboratory. Some parts of this work were reported at the AWS International Brazing and Soldering Conference, 2015, as an electronic preprint.


  • Brazing
  • Microstructure
  • Mo-Ni
  • Nanoparticles
  • SiC

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys


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