Viscoelastic properties and Creep-Fatigue behavior of PA2200/HA composites manufactured by selective laser sintering

Reference	Presenter	Authors (Institution)	Abstract
01-074	Dachamir Hotza	Dabbas, F.(UFSC); Salmoria, G.V.(UFSC); Stares, S.L.(Universidade Federal de Santa Catarina); Hotza, D.(Universidade Federal de Santa Catarina);	Porous (polyamide/hydroxyapatite) composites were manufactured via selective laser sintering process. Specimens with different PA2200/HA contents (100/0; 95/5; 90/10 and 80/20) were sintered at relative low laser energy density. The porous composite specimens were characterized for dynamic-mechanical analysis. The viscoelastic properties changed as a function of the composition of the composite materials. Storage and loss modulus vary between 1050 to 215 MPa and 35 to 5 MPa, respectively. The creep test showed that specimens with lower amount of HA had greater plastic deformation. In the fatigue test, all composite specimens presented no changes in their behavior and the 90/10 and 80/20 samples presented low fatigue strength under the test conditions.
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