Abstract
Fabrication of SOFC components by screen-printing using an optimized ink is very significant for the production of high quality films with improved performance. Understanding the correlation between the composition and rheology of the inks may enhance the properties screen-printed films. In this study, the rheological properties of NiO/ScSZ anode inks were studied and correlated to the particle network strength, screen-printability and film properties. All the inks were fabricated using a triple roll mill. The dynamic study showed that inks having particle network strength and complex modulus in the range of 50-200 Pa and 500-4000 Pa, respectively, were determined suitable for screen-printing application. In addition, these inks showed suitable viscosity and thixotropy with acceptable tackiness for screen-printing application. This range was exhibited by inks having binder and solids loading in the range of 1-3 wt% and 25-30 vol%, respectively. Furthermore, films fabricated using these inks showed improved particle connectivity, mechanical hardness, electrical and electrochemical performance resulting from increased particle connectivity.
| Original language | English |
|---|---|
| Title of host publication | ECS Transactions |
| Publisher | Electrochemical Society Inc. |
| Pages | 1323-1331 |
| Number of pages | 9 |
| Volume | 68 |
| Edition | 1 |
| ISBN (Print) | 9781607685395 |
| DOIs | |
| Publication status | Published - 2015 |
| Event | 14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, United Kingdom Duration: 26 Jul 2015 → 31 Jul 2015 |
Other
| Other | 14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage |
|---|---|
| Country | United Kingdom |
| City | Glasgow |
| Period | 26/7/15 → 31/7/15 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Understanding the rheology of screen-printing inks for the fabrication of SOFC thick films. / Somalu, Mahendra Rao; Muchtar, Andanastuti; Brandon, N. P.
ECS Transactions. Vol. 68 1. ed. Electrochemical Society Inc., 2015. p. 1323-1331.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Understanding the rheology of screen-printing inks for the fabrication of SOFC thick films
AU - Somalu, Mahendra Rao
AU - Muchtar, Andanastuti
AU - Brandon, N. P.
PY - 2015
Y1 - 2015
N2 - Fabrication of SOFC components by screen-printing using an optimized ink is very significant for the production of high quality films with improved performance. Understanding the correlation between the composition and rheology of the inks may enhance the properties screen-printed films. In this study, the rheological properties of NiO/ScSZ anode inks were studied and correlated to the particle network strength, screen-printability and film properties. All the inks were fabricated using a triple roll mill. The dynamic study showed that inks having particle network strength and complex modulus in the range of 50-200 Pa and 500-4000 Pa, respectively, were determined suitable for screen-printing application. In addition, these inks showed suitable viscosity and thixotropy with acceptable tackiness for screen-printing application. This range was exhibited by inks having binder and solids loading in the range of 1-3 wt% and 25-30 vol%, respectively. Furthermore, films fabricated using these inks showed improved particle connectivity, mechanical hardness, electrical and electrochemical performance resulting from increased particle connectivity.
AB - Fabrication of SOFC components by screen-printing using an optimized ink is very significant for the production of high quality films with improved performance. Understanding the correlation between the composition and rheology of the inks may enhance the properties screen-printed films. In this study, the rheological properties of NiO/ScSZ anode inks were studied and correlated to the particle network strength, screen-printability and film properties. All the inks were fabricated using a triple roll mill. The dynamic study showed that inks having particle network strength and complex modulus in the range of 50-200 Pa and 500-4000 Pa, respectively, were determined suitable for screen-printing application. In addition, these inks showed suitable viscosity and thixotropy with acceptable tackiness for screen-printing application. This range was exhibited by inks having binder and solids loading in the range of 1-3 wt% and 25-30 vol%, respectively. Furthermore, films fabricated using these inks showed improved particle connectivity, mechanical hardness, electrical and electrochemical performance resulting from increased particle connectivity.
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U2 - 10.1149/06801.1323ecst
DO - 10.1149/06801.1323ecst
M3 - Conference contribution
AN - SCOPUS:84938802729
SN - 9781607685395
VL - 68
SP - 1323
EP - 1331
BT - ECS Transactions
PB - Electrochemical Society Inc.
ER -