Limit for controlling stabilization of Cu powder prepared from Cu 2O-H2O system

H. T. Hai, D. J. Kim, Y. D. Kim, C. O. Kim, H. S. Chung, J. G. Ahn

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

1 Citation (Scopus)

Abstract

Ultrafine dispersed copper powders were prepared from copper (I) oxide (Cu2O) slurry by a wet chemical reduction with hydrazine as a reductant. Palladium chloride (PdCl2) was used as a nucleator along with its polymer stabilizer, polyvinylpyrrolidone (PVP). Sodium pyrophosphate (Na4O7P2) was added as a surfactant. It was found that the use of Cu2O and Na4O7P 2 exhibit very strong impact on dispersity of the prepared Cu powders. In this study, we indicate the critical conditions at which the particles aggregation still occurs even though the powders produced at high zeta potential resulted from an appropriate addition of Na4O 7P2.

Original languageEnglish
Title of host publicationRecrystallization and Grain Growth III - Proceedings of the Third International Conference on Recrystallization and Grain Growth, ReX and GG III
PublisherTrans Tech Publications Ltd
Pages741-746
Number of pages6
EditionPART 1
ISBN (Print)087849443X, 9780878494439
DOIs
Publication statusPublished - 2007
Event3rd International Conference on Recrystallization and Grain Growth, ReX GG III - Jeju Island, Korea, Republic of
Duration: 2007 Jun 102007 Jun 15

Publication series

NameMaterials Science Forum
NumberPART 1
Volume558-559
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other3rd International Conference on Recrystallization and Grain Growth, ReX GG III
CountryKorea, Republic of
CityJeju Island
Period07/6/1007/6/15

Keywords

  • Aggregation
  • Dispersion
  • Hydrazine monohydrate
  • Ultrafine Cu powders

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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