Manufacturing of highly porous titanium by metal injection molding in combination with plasma treatment

Daudt, Natália de Freitas; Bram, Martin; Barbosa, Ana Paula Cysne; Laptev, Alexander M.; Alves Júnior, Clodomiro

Manufacturing of highly porous titanium by metal injection molding in combination with plasma treatment

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dc.contributor.author	Daudt, Natália de Freitas
dc.contributor.author	Bram, Martin
dc.contributor.author	Barbosa, Ana Paula Cysne
dc.contributor.author	Laptev, Alexander M.
dc.contributor.author	Alves Júnior, Clodomiro
dc.date.accessioned	2021-03-19T14:37:00Z
dc.date.available	2021-03-19T14:37:00Z
dc.date.issued	2017-01
dc.description.resumo	Highly-porous titanium was produced by metal injection molding (MIM) of feedstock containing potassium chloride particles as a space holder. Macroporosity was generated by dissolving the potassium chloride particles in water. Challenges for MIM of highly-porous parts include shape retention during debinding and sintering and achieving open surface porosity. This study demonstrates that plasma treatment can remedy both these effects for highly-porous titanium. Plasma treatment of unsintered MIM samples enables attaining porosities of up to 64% in combination with good dimensional accuracy. The effect of plasma treatment on the uptake of interstitial impurities, dimensional accuracy, sintered microstructure and porosity, as well as the interaction of the plasma with partially-debinded MIM samples, was investigated. Highly-porous titanium produced by MIM and plasma treatment is attractive for biomedical implants due to its low impurity content, good dimensional accuracy and shape stability in combination with enhanced open porosity, the latter contributing to bone ingrowth and implant fixation	pt_BR
dc.identifier.citation	DAUDT, Natália de Freitas; BRAM, Martin; BARBOSA, Ana Paula Cysne; LAPTEV, Alexander M.; ALVES, Clodomiro. Manufacturing of highly porous titanium by metal injection molding in combination with plasma treatment. Journal of Materials Processing Technology, [S.L.], v. 239, p. 202-209, jan. 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0924013616302989?via%3Dihub. Acesso em: 03 fev. 2021. http://dx.doi.org/10.1016/j.jmatprotec.2016.08.022	pt_BR
dc.identifier.doi	10.1016/j.jmatprotec.2016.08.022
dc.identifier.issn	0924-0136
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/31947
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Metal injection molding	pt_BR
dc.subject	Highly porous titanium	pt_BR
dc.subject	Space holder method	pt_BR
dc.subject	Plasma treatment	pt_BR
dc.title	Manufacturing of highly porous titanium by metal injection molding in combination with plasma treatment	pt_BR
dc.type	article	pt_BR