Calcium phosphate ceramics with continuously gradient macrochannels using three-dimensional extrusion of bilayered ceramic-camphene mixture/pure camphene feedrod
- Authors
- Ahn, Min-Kyung; Moon, Young-Wook; Maeng, Woo-Youl; Koh, Young-Hag; Kim, Hyoun-Ee
- Issue Date
- 1-11월-2016
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Extrusion; Porous ceramics; Gradient pores; Biomedical applications
- Citation
- CERAMICS INTERNATIONAL, v.42, no.14, pp.15603 - 15609
- Indexed
- SCIE
SCOPUS
- Journal Title
- CERAMICS INTERNATIONAL
- Volume
- 42
- Number
- 14
- Start Page
- 15603
- End Page
- 15609
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/86896
- DOI
- 10.1016/j.ceramint.2016.07.013
- ISSN
- 0272-8842
- Abstract
- We herein demonstrate a novel, versatile approach to produce calcium phosphate (CaP) ceramics with continuously gradient macrochannels using three-dimensional extrusion of a bilayered ceramic-camphene mixture/pure camphene feedrod. In this technique, the pure camphene used as the upper part could be preferentially extruded because of the wall slip phenomenon. This enabled the formation of green filaments comprised of a camphene core surrounded by a ceramic/camphene shell, where the core/shell thickness ratio increased gradually as extrusion proceeded. CaP ceramics with continuously gradient macrochannels could be successfully produced by three-dimensionally depositing the extruded filaments layer-by-layer. With increasing the distance from the dense bottom layer, macrochannels created after the removal of the camphene cores via freeze-drying became larger, while the CaP walls became thinner. The local porosity could increase gradually and continuously from the dense bottom and reach up to 72 vol%. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Graduate School > Department of Bioengineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.