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Journal of the Korean Ceramic Society 1998;35(3): 251. |
| 박슬라브 연주용 침지노즐 슬래그 라인부의 조직열화 거동 |
| 하창수 |
| POSCO 기술연구소 |
| Degradation of ZrO$_2$-C Material for Submerged Entry Nozzle in Thin Slab Casting |
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| ABSTRACT |
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Behaviro of ZrO2-C mateial used for submerged entry nozzle in thin slab casting was investigated. De-gradation of the material has been found to result from breakup of zirconia aggregate refered to as "destabilization" Destabilization is almost completed during preheating procedure and shows an increasing tendency as the purity of zirconia aggregate decreases and as the content of metallic Si used in ZrO2-C aggregate during preheating. Such concentrated components make grain boundary wider but do not cause any additional destabilization of zirconiaf zirconia |
| Key words:
Submerged entry nozzle, Thin slab casting, Zirconia, Destabilization |
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