Bimodal metal micro-nanopowders for powder injection molding

Aleksandr Pervikov, Nikolay Rodkevich, Elena Glazkova, Marat Lerner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

The paper studies a bimodal metal powder composition designed to prepare feedstock for powder injection molding, as well as microstructure and porosity of sintered pats. Two kinds of metal powder compositions are used, in particular, a mixture of micro- and nanopowders and a bimodal powder prepared with dispersion of steel wire. The feedstock is prepared by mixing a bimodal metal powder composition with acetylacetone and paraffin wax. The microstructure of the debound parts is observed by scanning electron microscopy. The sintered parts are characterized by density measurements and metallographic analysis. The technique of the metal powder composition proves to affect the characteristics of sintered parts. Nanoparticles are shown in the interstitial spaces among the microparticles upon mixing micro- and nanopowders, but the regular distribution of nanoparticles on the surface of microparticles is observed in the bimodal powder providing the reduction of the porosity of sintered parts and increasing the density to the proper density of steel.

Original languageEnglish
Title of host publicationMechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2017
Subtitle of host publicationProceedings of the 11th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures
PublisherAmerican Institute of Physics Inc.
Volume1915
ISBN (Electronic)9780735416079
DOIs
Publication statusPublished - 12 Dec 2017
Event11th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2017 - Ekaterinburg, Russian Federation
Duration: 11 Dec 201715 Dec 2017

Conference

Conference11th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2017
CountryRussian Federation
CityEkaterinburg
Period11.12.1715.12.17

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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