Effect of preparation conditions and types of spray solutions on the formation of nano-sized silver-glass composite powders in flame spray pyrolysis

Hye Young Koo, Jang Heui Yi, Yun Chan Kang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The preparation conditions and the types of spray solution affect the formation of silver-glass composite powders in the flame spray pyrolysis. The nano-sized silver-glass composite powders with good firing characteristics at low temperatures are prepared under high-temperature diffusion flame applying ethyl alcohol to the spray solution. However, the powders prepared under low temperature diffusion flame have bimodal size distribution of nanometer and submicron sizes, in which glass material is not formed in the composite powders. The silver conducting films formed from the powders with bimodal size distribution have specific resistances of 17.2, 6.5 and 3.7 μΩ cm at firing temperatures of 400, 450 and 500 °C. However, the silver conducting films formed from the nano-sized composite powders with narrow size distribution have low specific resistances of 4.2, 4.1 and 2.8 μΩ cm at firing temperatures of 400, 450 and 500 °C.

Original languageEnglish
Pages (from-to)536-542
Number of pages7
JournalJournal of Alloys and Compounds
Volume496
Issue number1-2
DOIs
Publication statusPublished - 2010 Apr 30
Externally publishedYes

Keywords

  • Chemical synthesis
  • Gas-solid reaction

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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