Firing characteristics of size-controlled silver-glass composite powders prepared by spray pyrolysis

Hye Young Koo, Jang Heui Yi, You Na Ko, Jung Hyun Kim, Yun Chan Kang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Size-controlled spherical silver-glass composite powders were directly prepared by using spray pyrolysis. The mean sizes of the composite powders changed from 0.34 to 0.78 μm when the concentration of the spray solution was changed from 0.05 to 2 M. The firing characteristics of composite powders formed from the spray solutions with a glass content equal to 3 wt.% of the silver component were affected by the mean sizes of the powders. Silver-conducting films formed from large-sized composite powders had a denser structure than those formed from small-sized composite powders. Further, silver-conducting films formed from composite powders with a mean size of 0.78 μm had specific resistances of 3 and 2 μΩ cm at firing temperatures of 450 and 500 °C. However, silver-conducting films formed from composite powders with a mean size of 0.34 μm had specific resistances of 8.2 and 6.9 μΩ cm at firing temperatures of 450 and 500 °C.

Original languageEnglish
Pages (from-to)347-353
Number of pages7
JournalPowder Technology
Volume198
Issue number3
DOIs
Publication statusPublished - 2010 Mar 25
Externally publishedYes

Keywords

  • Composite powder
  • Conducting powder
  • Silver
  • Spray pyrolysis

ASJC Scopus subject areas

  • Chemical Engineering(all)

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