Biomaterials are in constant development in several branches of science such as Medicine and
Materials Engineering, due to the growing demand for materials that can help or replace parts of the
human body. Among these reasons, the objective of this work was to study the mechanical and
biological properties of bioceramic bodies of different mixtures containing hydroxyapatite, alumina
and titania. Among these studied materials, specimens were analyzed at limiting concentrations of
40% by mass of hydroxyapatite, 60% of alumina and 30% of titania, submitted to different thermal
cycles, to evaluate the responses of the materials to mechanical tests of resistance to compression and
hardness, and bioactivity test. The use of hydroxyapatite was due to its composition containing
calcium phosphate as well as the composition of the human body, it is a raw material with a high rate
of biocompatibility, reducing the risk of rejection by the host organism, ideal for regeneration and
bone repair. Alumina is a well-known bioceramic due to its high mechanical strength and emerging
biological properties, mainly for bone replacement. Titania presents improved biological and
mechanical properties when in the presence of other raw materials. Hydroxyapatite and titania
presented limitations of their mechanical properties in relation to sintering temperatures above
1200°C, unlike alumina in which their mechanical properties increased at temperatures of 1250°C.
The HAp-Al2O3-TiO2 composition demonstrates biological properties of bioactivity as they interact
with the submerged medium without loss of mass.
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