동결주조로 성형한 다공성 알루미나의 소결 미세구조 제어연구

• 영문명: A Brief Review on Microstructure Control of Freeze-casted Porous Alumina during Sintering
• 발행기관: 한국세라믹학회
• 저자명: 우종원(Jong-Won Woo) 김성현(Sung-Hyun Kim) 홍상민(Sang-Min Hong) 김종원(Jong-Won Kim) 전상채(Sang-Chae Jeon)
• 간행물 정보: 『세라미스트』제27권 제2호, 145~160쪽, 전체 16쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2024.06.30

국문 초록

Freeze-cast ceramics provide a wide range of applications, including filters, catalyst supports, heat-resistant materials, and biomaterials. The unique porous structure of freeze-cast ceramics offers new perspectives in various fields. However, for the functionality and durability of freeze-cast ceramics, a sufficient mechanical strength of the porous architecture is essential. In the freeze-casting process, the final microstructure is determined during sintering at high temperature through densification and grain growth, highlighting the importance of sintering techniques, which can be originated from sintering strategies in the bulk system. In other words, enhancing densification while suppressing grain growth should be realized by tailoring processing variables and/or materials variables. In this review, we suggest an effective way to control the microstructure by addition of dopants in porous alumina prepared by freeze-casting. The results provide a facile method for microstructure control and provide insight into the selection of promising dopants for better mechanical strength of porous ceramics

목차

1. 서론

2. 본론

3. 결론

ACKNOWLEDGEMENTS

REFERENCES

키워드

Densification Freeze-casting Grain growth Porous alumina Sintering