Estudo das propriedades mecânicas do compósito HAP/ zircônia
The hydroxyapatite, a kind of calcium phosphate is a bioactive ceramic. Its composition is similar to the mineral composition of the bone and the tooth therefore has been used as contact material of artificial human tissue components. These are widely used in implants and bone grafts in order to mee...
| Autor principal: | Rossomano, Nicole Angélica |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2020
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/12171 |
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| Resumo: |
The hydroxyapatite, a kind of calcium phosphate is a bioactive ceramic. Its composition is similar to the mineral composition of the bone and the tooth therefore has been used as contact material of artificial human tissue components. These are widely used in implants and bone grafts in order to meet the physiological characteristics of the body of people and replace bone implants when necessary ceramic materials such as hydroxyapatite, has had great success in health, however some mechanical properties such as fracture toughness are lacking. This work is intended to form the compound HAP / Zirconia in order to improve their mechanical properties due to its desirable characteristics as zirconia be bioinert and increase mechanical resistance when added to other material. Two types of hydroxyapatite were used, a type obtained by acid obtained via other for basic channels. The zirconia used was marketed by TOSOH® company. The zirconia contents used were 0, 10, 20 and 30%. Mechanical tests as diametrical compression and hardness were carried out in order to set the compression threshold and hardness of the material. Characterizations such as X-ray diffraction was used to define the presence of phases present in the materials and scanning electron microscopy in order to characterize the obtained microstructures. |
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