Abstract
Nano-sized Ag-Pd (50-50) alloy powders coated with Pb-based glass material with low and high glass transition temperature are directly prepared by high-temperature flame spray pyrolysis. Nano-sized Ag-Pd-glass composite powder is formed from the evaporated vapors by nucleation and growth process, and then glass material moves out to the outside of the powder by crystallization process of alloy. The thickness of the glass coating layer measured from the TEM image is 2.8 nm. The mass changes of the Ag-Pd alloy and Ag-Pd-glass composite powders in the TG analysis under 900 °C are 10.9 and 6.8%, respectively. Glass materials improve the uniformity and density of the Ag-Pd electrode layers by act as sintering agent and adhesion improvement. The Ag-Pd electrode formed from the composite powders with high glass transition temperature glass material has thin and uniform thickness. The specific resistances of the electrodes formed from the nano-sized Ag-Pd-glass composite powders are 0.27, 0.09, and 0.03 mΩ cm at firing temperatures of 700, 800, and 900 °C, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 7090-7098 |
| Number of pages | 9 |
| Journal | Journal of Materials Science |
| Volume | 47 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 2012 Oct 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Sintering characteristics of nano-sized Ag-Pd-glass composite powders with high Pd content. / Kim, Jung Hyun; Jung, Dae Soo; Lee, Jung Kul; Kang, Yun Chan.
In: Journal of Materials Science, Vol. 47, No. 20, 01.10.2012, p. 7090-7098.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Sintering characteristics of nano-sized Ag-Pd-glass composite powders with high Pd content
AU - Kim, Jung Hyun
AU - Jung, Dae Soo
AU - Lee, Jung Kul
AU - Kang, Yun Chan
PY - 2012/10/1
Y1 - 2012/10/1
N2 - Nano-sized Ag-Pd (50-50) alloy powders coated with Pb-based glass material with low and high glass transition temperature are directly prepared by high-temperature flame spray pyrolysis. Nano-sized Ag-Pd-glass composite powder is formed from the evaporated vapors by nucleation and growth process, and then glass material moves out to the outside of the powder by crystallization process of alloy. The thickness of the glass coating layer measured from the TEM image is 2.8 nm. The mass changes of the Ag-Pd alloy and Ag-Pd-glass composite powders in the TG analysis under 900 °C are 10.9 and 6.8%, respectively. Glass materials improve the uniformity and density of the Ag-Pd electrode layers by act as sintering agent and adhesion improvement. The Ag-Pd electrode formed from the composite powders with high glass transition temperature glass material has thin and uniform thickness. The specific resistances of the electrodes formed from the nano-sized Ag-Pd-glass composite powders are 0.27, 0.09, and 0.03 mΩ cm at firing temperatures of 700, 800, and 900 °C, respectively.
AB - Nano-sized Ag-Pd (50-50) alloy powders coated with Pb-based glass material with low and high glass transition temperature are directly prepared by high-temperature flame spray pyrolysis. Nano-sized Ag-Pd-glass composite powder is formed from the evaporated vapors by nucleation and growth process, and then glass material moves out to the outside of the powder by crystallization process of alloy. The thickness of the glass coating layer measured from the TEM image is 2.8 nm. The mass changes of the Ag-Pd alloy and Ag-Pd-glass composite powders in the TG analysis under 900 °C are 10.9 and 6.8%, respectively. Glass materials improve the uniformity and density of the Ag-Pd electrode layers by act as sintering agent and adhesion improvement. The Ag-Pd electrode formed from the composite powders with high glass transition temperature glass material has thin and uniform thickness. The specific resistances of the electrodes formed from the nano-sized Ag-Pd-glass composite powders are 0.27, 0.09, and 0.03 mΩ cm at firing temperatures of 700, 800, and 900 °C, respectively.
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UR - http://www.scopus.com/inward/citedby.url?scp=84865248113&partnerID=8YFLogxK
U2 - 10.1007/s10853-012-6395-1
DO - 10.1007/s10853-012-6395-1
M3 - Article
AN - SCOPUS:84865248113
VL - 47
SP - 7090
EP - 7098
JO - Journal of Materials Science
JF - Journal of Materials Science
SN - 0022-2461
IS - 20
ER -