Characteristics of nano-sized Ag-Pd (70-30)-glass composite powders prepared by flame spray pyrolysis

Hye Young Koo, Dae Soo Jung, Jung Hyun Kim, You Na Ko, Jang Heui Yi, Yun Chan Kang, Hye Moon Lee, Jung Yeul Yun

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Abstract

Nano-sized Ag-Pd alloy and Ag-Pd-glass composite powders were prepared by flame spray pyrolysis. The Ag-Pd molar ratio was fixed at 70-30. The mean sizes of the Ag-Pd and Ag-Pd-glass powders were 29 and 25nm, respectively. The Ag-Pd alloy powder began to be oxidized rapidly at approximately 365°C and oxidation of alloy powders was finished at 420°C. On the other hand, oxidation of the Ag-Pd-glass composite powders gradually occurred around 400°C and oxidation of the powders was finished at 530°C. The specific resistances of the conducting films formed from the nano-sized Ag-Pd-glass composite powders were 76, 59, 35 μΩ·cm at firing temperatures of 550, 600 and 800°C, respectively.

Original languageEnglish
Pages (from-to)23-28
Number of pages6
JournalJournal of the Ceramic Society of Japan
Volume119
Issue number1385
DOIs
Publication statusPublished - 2011 Jan 1
Externally publishedYes

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Keywords

  • Composite powder
  • Electrode material
  • Nano powder
  • Spray pyrolysis

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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