| Author | Search for: Baril, E.1; Search for: Thomas, Y.1; Search for: Lefebvre, L.-P.1 |
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| Affiliation | - National Research Council of Canada. NRC Industrial Materials Institute
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| Format | Text, Article |
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| Conference | 2011 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2011, 18 May 2011 through 21 May 2011, San Francisco, CA |
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| Subject | Bone-implant interfaces; New production; Orthopaedic implants; Osteointegration; Porous coatings; Porous titanium; Sound interface; Titanium powders; Feedstocks; MIM devices; Porosity; Powder metallurgy; Sintering; Titanium |
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| Abstract | Porous surfaces have been used for many years to enhance osteointegration and bone-implant interface of various orthopaedic implants. Different techniques have been developed to apply porous coating on dense implants. This paper presents an alternative method to depose dense titanium on porous titanium. Titanium foam inserts were produced using a powder metallurgy approach. These inserts were then inserted in a mold having the geometry of the final component and a titanium MIM feedstock was injected over the inserts. The composite green parts were then treated following a standard MIM procedure. Two levels of porosity and titanium grades were studied. During molding, the MIM feedstock partially infiltrates the porosity of the foam. After sintering, a sound interface between the foam and dense titanium is obtained. This new production approach may enable the design of complex orthopaedic implants with foams integrated at various locations. |
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| Publication date | 2011 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21271329 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | bc00162d-0613-4e8e-b78c-125b70cced25 |
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| Record created | 2014-03-24 |
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| Record modified | 2020-04-21 |
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