|
|
|
Journal of the Korean Ceramic Society 1996;33(5): 563. |
| 공침법에 의한 CaO 첨가 안정화 $ZrO_2$의 미분말 합성 및 그 소결특성 |
| 박정일, 이주신, 최태운 |
| 경성대학교 재료공학과 |
| Fine Powder Synthesis and It첨s Sintering Characteristics of CaO-Stabilized $ZrO_2$ by Coprecipitation Method |
|
|
|
|
|
|
|
| ABSTRACT |
|
In order to fabricate solid electrolyte CaO-stabilized ZrO2 of high density sintered body economically 13 mol% CaO-stabilized ZrO2 powders were synthesized by the coprecipitation method. The characteristics and sintering behavior of fine powder were investigated. The precipitates has the specific surface area of 193 m2/g and apperaed to be fine and spherical primary particles with a size of approximately 5nm. The crystalliza-tion temperture of CaO-stabilized ZrO2 was 462$^{circ}C$. The tetragonal phase was stable in the low calcining tempe-rature regions and the cubic zirconia solid solution was formed from above 120$0^{circ}C$ through an intermediate stage of formation of CaZrO3 By introducing fine powders washed with alcohol and ball-milling process after calcination the sintered body was possible to attain the value of above 92% of the theoretical density at low temperature of 120$0^{circ}C$. |
| Key words:
CaO-stabilized $ZrO_2$, Coprecipitation, Fine powder, Sintering |
|
|
|
PDF Links
Full text via DOI 
Download Citation 
