Effects of gallia additions on sintering behavior of gadolinia-doped ceria

Synthesis, sintering and electrical properties of yttria–calcia-doped ceria

“…With the same final objective, addition of some amounts of different oxides has been also essayed. [7][8][9][10][11][12][13][14][15][16][17][18][19] Another problem associated to the final ceramic microstructure is the rather low conductivity of grain boundary, G.B. when compares with that of the corresponding bulk.…”

Effects of strontium gallate additions on sintering behavior and electrical conductivity of samaria-doped ceria

“…: +82 51 620 4763; fax: +82 51 622 8452. the investigators have studied for the preparation of ultra fine ceria-based ceramic powders by chemical routes such as coprecipitation and sol-gel process. Recently, it has been reported that Ga 2 O 3 [10][11][12], Al 2 O 3 [13,14], MnO 2 [15], Fe 2 O 3 [16], Co 3 O 4 [17], and CoO [18] are effective sintering aids for the densification of ceria-based ceramics. For Sr 2 Ga 2 O 5 additive, only report available is on Gd 2 O 3 -doped CeO 2 system.…”

Effects of alumina additions on sintering behavior of Ce0.8Sm0.2O1.9 ceramics synthesized by Pechini method

“…In order to lower the sintering temperature, several investigators [2][3][4][5][6][7][8][9] have studied the role of sintering additives. However, studies on the sintering additives used for ceria-based ceramics have been limited to Ga 2 O 3 [2,8,9], Co 3 O 4 [3], Fe 2 O 3 [4], CoO [5], MnO 2 [6] and Al 2 O 3 [7] additives.…”

“…However, studies on the sintering additives used for ceria-based ceramics have been limited to Ga 2 O 3 [2,8,9], Co 3 O 4 [3], Fe 2 O 3 [4], CoO [5], MnO 2 [6] and Al 2 O 3 [7] additives. For Al 2 [7] reported that the addition of Al 2 O 3 up to the solid solubility limit caused the promotion of grain growth and an increase in density.…”