| Title | Silicon nitride - bioglass composite for biomedical applications |
| Publication Type | Journal Article |
| 2001 |
| Authors | Santos, JD, Amaral, M, Oliveira, SM, Lopes, MA, Silva, RF |
| Journal | Key Engineering MaterialsKey Eng Mat |
| Volume | 192-195 |
| Issue | Uetikon-Zuerich, Switzerland |
| Pagination | 589 - 592 |
| Date Published | 2001/// |
| 10139826 (ISSN) |
| Bioactive ceramic composite, Bioglass, Biomaterials, Body fluids, Bone, Ceramic matrix composites, cortical bone, Densification, Fracture toughness, Glass ceramics, Hot pressing, Medical applications, Silicon nitride, Simulated body fluid |
| This study aimed at preparing novel highly toughened bioactive ceramic composite composed of Si 3N
4 matrix and Bioglass using a hot pressing technique. Densification rate, hardness and fracture toughness of this novel composite were assessed as well as in vitro bioactivity using a simulated body fluid (SBF). A fracture toughness of 5.2±0.3 MPa.m.
1/2 was achieved for fully densified samples, which complies with K
1c value reported for cortical bone. This novel composite, which can be used in high load medical applications, seems to overcome the drawback of low fracture toughness presented by most currently available bioactive ceramics.
|
| http://www.scopus.com/inward/record.url?eid=2-s2.0-0035147698&partnerID=40&md5=3920a80d3e54d72e2efece615e5d55f3 |
