Effect of alumina addition on the microstructure of plasma sprayed YSZ

Measurement and numerical simulation of two-phase plasma flow in plasma spray process

“…The most rapid melting occurs at distance x/d = 3−8 from exhaust nozzle and this is the second -melting zone of particle. The practical usability of calculation results has been verified by comparing the simulation data with experiments [14,15]. Morphologies of plasma-sprayed Al 2 O 3 powders during the II regime (Table 1) are shown in Fig.…”

Numerical and Experimental Investigation of Two-Phase Plasma Jet during Deposition of Coatings

“…Temperature of particle gradually rises and melting rapidly proceeds. The most rapid melting occurs at distance x/d = , Brinkiene et al, 2005. Morphologies of plasma-sprayed Al 2 O 3 powders during the II regime (Table 1) are shown in Fig.…”

Improvement of plasma-sprayed YSZ electrolytes for solid oxide fuel cells by alumina addition

“…Many post-densification processes have been applied to improve APS YSZ electrolyte, including acidic phosphate solution sealing [12], nitrate decomposition [11,13], sol immersion [14], laser glazing [15], and spark sintering [16]. At present, many investigations have been carried out to improve the gas permeability and ionic properties of YSZ thin films using alumina addition [2,[17][18][19][20][21]. Initial YSZ powder with 3-4 wt.% of Al 2 O 3 addition allows one to produce SOFC electrolyte layer with higher value of bulk density [20] and with practically no open porosity.…”

“…At present, many investigations have been carried out to improve the gas permeability and ionic properties of YSZ thin films using alumina addition [2,[17][18][19][20][21]. Initial YSZ powder with 3-4 wt.% of Al 2 O 3 addition allows one to produce SOFC electrolyte layer with higher value of bulk density [20] and with practically no open porosity. The experiments show [21] that the performance of a cell with alumina added to the electrolyte is better than that of pure YSZ.…”