This current study reports preparation of Nickel-Gadolinium doped Ceria (Ni-GDC) composite via controlled unidirectional freeze casting of aqueous-based GDC slurry completed with nickel infiltrated into the porous GDC samples. Gadolinium doped ceria powder prepared by gel-combustion synthesis method. The oxide powder was confirmed to be the fluorite-structured of Ce0.8Gd0.2O1.9 solid solution by X-ray diffraction. The synthesized powder with dolapix as a dispersant, ammoniac as an agent pH, poly vinyl alcohol (PVA) as a binder and water as a solvent were used to prepare stable GDC slurries. Freeze casting process was done in different solid loading of GDC at 35, 45 and 44 wt. %, and two different rates of 1 and 3 ̊C/min to obtain desirable pore structure. After removing the frozen ice at -58 ̊C the green samples were sintered for 2 h in air at 1300 °C. The pore structure and final microstructure were studied by scanning electron microscopy. The porosity of the sintered samples was in a range of 60-70% , and were depended on solid content and freeze casting rate. Finally nickel solution was infiltrated into hierarchically porous GDC samples, after reduction at 800 ̊C, Ni-GDC composite was attained.
Khakpour, Z., Mousavi, A., Niazmand, M., Alizadeh, M., & Zamanian, A. (2017). Preparation of aliened porous Ni-GDC nano composite by freeze-casting process. Advanced Ceramics Progress, 3(1), 10-15. doi: 10.30501/acp.2017.70039
MLA
Zahra Khakpour; Amin Mousavi; Morteza Niazmand; Masoud Alizadeh; Ali Zamanian. "Preparation of aliened porous Ni-GDC nano composite by freeze-casting process". Advanced Ceramics Progress, 3, 1, 2017, 10-15. doi: 10.30501/acp.2017.70039
HARVARD
Khakpour, Z., Mousavi, A., Niazmand, M., Alizadeh, M., Zamanian, A. (2017). 'Preparation of aliened porous Ni-GDC nano composite by freeze-casting process', Advanced Ceramics Progress, 3(1), pp. 10-15. doi: 10.30501/acp.2017.70039
VANCOUVER
Khakpour, Z., Mousavi, A., Niazmand, M., Alizadeh, M., Zamanian, A. Preparation of aliened porous Ni-GDC nano composite by freeze-casting process. Advanced Ceramics Progress, 2017; 3(1): 10-15. doi: 10.30501/acp.2017.70039
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