| CeO2의 첨가량 변화에 따른 세리아 안정화 지르코니아 세라믹스의 기계적 특성 관찰 |
| 강종봉 |
| 경남대학교 나노공학과 |
| Mechanical Properties Observation of Ce-TZP Ceramics by Quantity Change of CeO2 |
| Jong-Bong Kang |
| Nano Egineering, Kyungnam University |
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| ABSTRACT |
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The usual ceramic process of mixing and milling in state of oxide of $ZrO_2$ and $CeO_2$ was adopted in wet process to manufacture Ce-TZP in this study. The maximum dispersion point of every slurry manufactured with mixture of $ZrO_2$ and $CeO_2$ was neat at pH10. The stable slurry in average particle size of 90 nm can be manufactured when it is dispersed with use of ammonia water and polycarboxylic acid ammonium. The sintered Ce-TZP ceramics manufactured with addition of $CeO_2$ less than 10 mol% was progressed to the fracture of specimen due to the monoclinic phase existence more than 30% at the room temperature. More than 99% of tetragonal phase was created for the sintered body with addition of $CeO_2$ beyond 18 mol%, but the mechanical property degrade on the entire specimen was brought due to the $CeO_2$ existing above 3%. Consequently, the optimal Ce-TZP combined in oxide state was identified in 16 mol% of $CeO_2$ contents. |
| Key words:
Cerium dioxide, Ce-TZP, Dispersion, Tetragonal phase, DTS |
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