TY - GEN
T1 - Fabrication of supports for Solid Oxide Fuel Cells by Powder Injection Molding
AU - Panahi, Ali Keshavarz
AU - Miyanaji, Hadi
AU - Taheri, Moein
AU - Janbakhsh, Milad
PY - 2011
Y1 - 2011
N2 - In this paper the processing steps for producing SOFC (Solid Oxide Fuel Cell) supports by means of PIM (Powder Injection Molding) technique were investigated. Injection molding parameters in this study were divided into pressure- related (injection pressure and packing pressure), temperature- related (nozzle temperature and mold temperature), and time- related (injection rate and holding time) parameters. Keeping the other parameters (pressure-related, temperature-related and time-related parameters) constant at an optimized value, the effects of each of the molding parameters above were investigated. The results show that the short shot, warpage, weld line and void are the most common defects in molded parts. According to the results the short shot could be seen in low values of injection pressure, injection rate, nozzle and mold temperature. Also, warpage could be seen in high values of mold temperature, injection and packing pressure. Poor weld line was another defect that could be seen in low values of injection pressure, injection rate, nozzle and mold temperature. Also the void was one of the most common defects that could be seen in high values of injection rate and nozzle temperatures. Finally, using optimized molding parameters, the molded parts underwent debinding and sintering processes. Based on the results of thermal shock tests and the porosity measurements of the sintered parts, these molded parts possessed relatively desirable characteristics.
AB - In this paper the processing steps for producing SOFC (Solid Oxide Fuel Cell) supports by means of PIM (Powder Injection Molding) technique were investigated. Injection molding parameters in this study were divided into pressure- related (injection pressure and packing pressure), temperature- related (nozzle temperature and mold temperature), and time- related (injection rate and holding time) parameters. Keeping the other parameters (pressure-related, temperature-related and time-related parameters) constant at an optimized value, the effects of each of the molding parameters above were investigated. The results show that the short shot, warpage, weld line and void are the most common defects in molded parts. According to the results the short shot could be seen in low values of injection pressure, injection rate, nozzle and mold temperature. Also, warpage could be seen in high values of mold temperature, injection and packing pressure. Poor weld line was another defect that could be seen in low values of injection pressure, injection rate, nozzle and mold temperature. Also the void was one of the most common defects that could be seen in high values of injection rate and nozzle temperatures. Finally, using optimized molding parameters, the molded parts underwent debinding and sintering processes. Based on the results of thermal shock tests and the porosity measurements of the sintered parts, these molded parts possessed relatively desirable characteristics.
U2 - 10.1115/MSEC2011-50199
DO - 10.1115/MSEC2011-50199
M3 - Conference contribution
AN - SCOPUS:82455186108
SN - 9780791844304
T3 - ASME 2011 International Manufacturing Science and Engineering Conference, MSEC 2011
SP - 25
EP - 30
BT - ASME 2011 International Manufacturing Science and Engineering Conference, MSEC 2011
T2 - ASME 2011 International Manufacturing Science and Engineering Conference, MSEC 2011
Y2 - 13 June 2011 through 17 June 2011
ER -