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

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

“…It is possible that Al 2 O 3 additions result in the substitution of Al 3+ ions for Ce 4+ ions within its solubility limit [7]. The addition of Al 2 O 3 in a CeO 2 system would lead to the formation of oxygen vacancies because of charge compensation.…”

“…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.…”

“…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.…”

Effects of strontium gallate additions on sintering behavior of gadolinia-doped ceria

“…In order to lower the sintering temperature, several investigators [2][3][4][5][6][7][8][9] have studied the role of sintering additives.…”

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.…”