| Download | - View accepted manuscript: Development of titanium dental implant by MIM : experiments and simulation (PDF, 2.7 MiB)
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| Author | Search for: Thomas, Yannig1; Search for: Baril, Eric1; Search for: Hetu, Jean François1; Search for: Ilinca, Florin1 |
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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 | 2009 International Conference on Power Metallurgy & Particulate Materials (PowderMet2009), June 28 - July 1, 2009, Las Vegas, NV, USA |
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| Abstract | Present work at IMI deals with the development of a composite porous/dense dental implant based on two powder metallurgy approaches: Metal injection molding (MIM) of titanium for the dense core and titanium foam coating for the outer surface. A first series of MIM dense cores were produced using a wax based binder and CpTi -45μm powder and some defects and instabilities were observed in both the molded and sintered components. This paper will focus on the understanding of the origin of these defects. To achieve this goal, several MIM feedstocks were prepared with the same volume of wax based binder but with powders having different particle sizes. A commercial feedstock was also used as a reference. The physical and rheological properties of these feedstocks were first characterized in order to obtain the data required for the full 3D modelling of the mold filling. The filling behaviour of these feedstocks was then examined through the production of short shots and the characterization of the molded parts by micro CT tomography. These experimental results were further compared with the mold filling simulation of the feedstocks using a 3D finite element code including free-surface flow. |
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| Publication date | 2009 |
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| Publisher | Metal Powder Industries Federation |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | NRC-IMI-51094 |
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| NPARC number | 16001664 |
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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 | 0553741b-cb31-440d-a4cc-f856c53e86fe |
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| Record created | 2010-08-30 |
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| Record modified | 2020-04-16 |
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