Preparation of High-Strength Calcium Phosphate Ceramics with Low Modulus of Elasticity Containing β-Ca(PO3)2 Fibers |
| |
| Authors: | Toshihiro Kasuga Yoshio Ota Kenji Tsuji Yoshihiro Abe |
| |
| Affiliation: | Department of Materials Science and Engineering, Nagoya Institute of Technology, Nagoya 466, Japan |
| |
| Abstract: | Novel calcium phosphate ceramics were fabricated by hot-pressing fibrous products extracted from crystallized products of calcium ultraphosphate glasses by aqueous leaching. The ceramics were dense materials with a relative density of >95%; these ceramics were composite materials that consisted of β-Ca(PO3)2 fibrous crystals with CaO–P2O5 glass, which was formed during hot pressing, as the matrix phase. These ceramics showed a high bending strength of 150–220 MPa and a low Young's modulus of 30–60 GPa. The high toughness contributed to the high strength, with fiber pull-out and crack deflection observed as the primary toughening mechanism. |
| |
| Keywords: | |
|
|
