| 학회 |
한국재료학회 |
| 학술대회 |
2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 |
27권 2호 |
| 발표분야 |
B. 나노화학/바이오 재료 분과 |
| 제목 |
Fabrication of highly densified zirconia dental prostheses via conventional digital light processing (DLP) |
| 초록 |
This study proposes a zirconia slurry with high solid loading for conventional digital light processing (DLP), which can produce the zirconia object having complex-shape. Zirconia slurry containing high content of zirconia powder inevitably exhibits high viscosity which affects limitation using conventional DLP. Therefore, zirconia slurry up to 45 vol% were fabricated using the conventional DLP by controlling the composition. For photocurable monomers in zirconia slurry, two types of photocurable binder with multi-functionality and photo-initiator were used for photopolymerization. Additionally, dispersant and diluent were used for decreasing the viscosity. Zirconia slurry with high solid loading (φ = 45 vol%) showed low viscosity and complex-shape specimens could be printed. And high densification of zirconia specimen was achieved after sintering and the measured relative density was 98.43 ± 0.46 %. Moreover, we evaluated several properties of the zirconia objects fabricated by conventional DLP to verify the significance. |
| 저자 |
Seo-young Yang, Young-Hag Koh
|
| 소속 |
Korea Univ. |
| 키워드 |
Zirconia; Additive manufacturing; Dental ceramics; Densification
|
| E-Mail |
|
