Preparation and characterization of stainless steel 316L/HA biocomposite

Preparation and characterization of stainless steel 316L/HA biocomposite

Autor Silva, Gilbert Google Scholar
Baldissera, Márcia Regina Google Scholar
Trichês, Eliandra de Sousa Autor UNIFESP Google Scholar
Cardoso, Kátia Regina Autor UNIFESP Google Scholar
Instituição Universidade Federal de Itajubá IEM
Universidade Federal de Itajubá Instituto de Ciências Exatas
Universidade Federal de São Paulo (UNIFESP)
Resumo The austenitic stainless steel 316L is the most used metallic biomaterials in orthopedics applications, especially in the manufacture of articulated prostheses and as structural elements in fracture fixation, since it has high mechanical strength. However, because it is biologically inactive, it does not form chemical bond with bone tissue, it is fixed only by morphology. The development of biocomposites of stainless steel with a bioactive material, such as hydroxyapatite - HA, is presented as an alternative to improve the response in the tissue-implant interface. However significant reductions in mechanical properties of the biocomposite can occur. Different compositions of the biocomposite stainless steel 316L/HA (5, 20 and 50 wt. (%) HA) were prepared by mechanical alloying. After milling the powders for 10 hours, the different compositions of the biocomposite were compacted isostatically and sintered at 1200 ºC for 2 hours. The mechanical properties of the biocomposites were analyzed by compression tests. The powders and the sintered composites were analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD).
Palavra-chave biocomposite
stainless steels 316L
hydroxyapatite
mechanical alloying
Idioma Inglês
Financiador Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Data de publicação 2013-04-01
Publicado em Materials Research. ABM, ABC, ABPol, v. 16, n. 2, p. 304-309, 2013.
ISSN 1516-1439 (Sherpa/Romeo, fator de impacto)
Publicador ABM, ABC, ABPol
Extensão 304-309
Fonte http://dx.doi.org/10.1590/S1516-14392012005000182
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000316763800005
SciELO S1516-14392013000200005 (estatísticas na SciELO)
Endereço permanente http://repositorio.unifesp.br/handle/11600/7725

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