Mechanical properties of nanoparticles reinforced Mo-Ni braze for a dispenser cathode application

Daniel Busbaher, Wen Liu, Dusan P. Sekulic

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

The mechanical properties of nanoparticles (either Mo-Ni or SiC) reinforced Mo-Ni brazes were studied by microindentation. It was noticed that: (i) for MoNi near-eutectic fillers doped with 3% and composed of 100% Mo-Ni nanoparticles the non-eutectic phase features consistently a larger hardness than the eutectic phase. Fillers with various additions of Mo-Ni nanoparticles respond differently to the indentation. An appearance of cracks hasn't been noticed in this case. (ii) for Mo-Ni near-eutectic fillers doped with 1%, 3% and 5% SiC nanoparticles, two phases with different hardness are identified as phases I and II. Cracks still exist in all cases with the addition of SiC nanoparticles.

Original languageEnglish
Title of host publication2012 IEEE 9th International Vacuum Electron Sources Conference, IVESC 2012
Pages485-486
Number of pages2
DOIs
StatePublished - 2012
Event2012 IEEE 9th International Vacuum Electron Sources Conference, IVESC 2012 - Monterey, CA, United States
Duration: Apr 24 2012Apr 26 2012

Publication series

Name2012 IEEE 9th International Vacuum Electron Sources Conference, IVESC 2012

Conference

Conference2012 IEEE 9th International Vacuum Electron Sources Conference, IVESC 2012
Country/TerritoryUnited States
CityMonterey, CA
Period4/24/124/26/12

Keywords

  • brazing
  • dispenser cathode
  • filler metal
  • nanoparticles

ASJC Scopus subject areas

  • Radiation

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