https://scholars.lib.ntu.edu.tw/handle/123456789/576956
標題: | Sintering of degradable bone substitutes at room temperature | 作者: | Lin H.-Y Huang Y.-K Hsu P.-Y Tuan W.-H Naito M. WEI-HSING TUAN |
關鍵字: | Calcium compounds; Densification; Driers (materials); Sintering; Sulfur compounds; Biaxial strength; Bone substitutes; Calcium sulfate hemihydrate; Calcium sulphate; Clinical need; Conventional sintering; Densifications; Dihydrates; Microstructure refinement; Relative density; Degradation | 公開日期: | 2021 | 來源出版物: | Ceramics International | 摘要: | The possibility of preparing bone substitutes in clinic is demonstrated in this study. With the addition of a small amount of water, the relative density of the calcium sulfate specimen prepared at room temperature became higher than 92%. This value is close to the density of the specimen prepared through conventional sintering at 1100 °C for 1 h. The biaxial strength of the specimen disc can reach 120 MPa. Densification is assisted by the hydration of calcium sulfate hemihydrate to dihydrate wherein coarse hemihydrate particles transformed to fine dihydrate dendrites. Strength is conferred by the entanglement of dendrites and microstructure refinement. The densified calcium sulfate disc remains degradable; its degradation rate in a phosphate buffer saline solution is ~1.6 wt%/day, and the rate remains steady for 28 days. ? 2021 Elsevier Ltd and Techna Group S.r.l. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105602525&doi=10.1016%2fj.ceramint.2021.04.185&partnerID=40&md5=8db8d0e38361060de9949173808c775b https://scholars.lib.ntu.edu.tw/handle/123456789/576956 |
ISSN: | 2728842 | DOI: | 10.1016/j.ceramint.2021.04.185 |
顯示於: | 材料科學與工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。