| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8021794 | Materials Letters | 2013 | 4 Pages |
Abstract
This study presents a new bio-ceramic processing technique, which can be used to deposit thick porous hydroxyapatite(HA) coatings on strong three-dimensional (3D) zirconia substrates with a strong coating-substrate interface bonded by bio-glass infiltration during the sintering process. A thin bio-glass coating was first painted on the micro-porous zirconia substrates, pre-sintered at 900 °C, then followed by thick HAslip coating with gelatin and ceramic and polymer additives. Freeze-drying was used to create porous scaffold structures within the thick HA coating. The green tri-layer ceramic composites were then co-sintered at 1300 °C, resulting in thick scaffold-like HA-coating bonded strongly on load-bearing zirconia substrate or implant core. Such bio-ceramic composites with suitable strength and bio-active and bio-resorbable surface coating can provide useful implant options, bridging the gap between weak and fragile HA scaffolds and strong titanium implants.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Bin Jiang, Xiaozhi Hu, Zhaohui Huang,