Evaluation of the mechanical properties of hot isostatically pressed titania and titania-calcium phosphate composites.
A number of composites based on titania and calcium phosphates, hydroxyapatite, bone ash or beta-tricalcium phosphate, were sintered by glass-encapsulated hot isostatic pressing at 925 degrees C. The mechanical properties of the titania and titania-calcium phosphate composites--three-point bending strength, fracture toughness and Young's modulus--were 250-450 MPa, 2.5-2.9 MPa m1/2 and 230-270 GPa, respectively. Hardness and density were also measured. The results suggest that these composites have potential applications in medicine as implant materials.
Li
J
J
Centre for Dental Technology and Biomaterials, Karolinska Institute, Huddinge, Sweden.
Forberg
S
S
Hermansson
L
L
D002130:Calcium Phosphates; D003188:Composite Resins / Q000737:chemistry*; D003764:Dental Materials; D006358:Hot Temperature; D008422:Materials Testing; D014025:Titanium
D002130:Calcium Phosphates; D003188:Composite Resins; D003764:Dental Materials; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; C485838:calcium phosphate, monobasic, anhydrous; C020243:calcium phosphate; D014025:Titanium; C485829:calcium phosphate, dibasic, anhydrous