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New semi-isostatic high velocity compaction method to prepare titanium dental copings
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.ORCID iD: 0000-0002-7514-0513
Nobel Biocare AB.
Nobel Biocare AB.
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2004 (English)In: Powder Metallurgy, ISSN 0032-5899, E-ISSN 1743-2901, Vol. 47, no 4, p. 335-342Article in journal (Refereed) Published
Abstract [en]

A new method to prepare titanium dental copings from titanium powder was tested, involving high velocity compaction and various elastic forms, which were used to achieve a semi-isostatic effect during the impact. The tooth preparation die (mandrel) and the powder were placed inside an elastic form. The impact struck the elastic form, and the powder was compacted against the tooth preparation die. Several different elastomers were tested to find the best one. Cross-sections of the powder bodies were studied for density variations. The soft, flexible elastomer worked best to compact the powder. The highest densification could be focused closest to the mandrel where the coping should be milled out. The density in the highest density areas could locally reach 98-99%. If the method with elastic forms could be optimised to give as high a density as without elastic forms, a lower shrinkage and possible deformation of the copings could be reached.

Place, publisher, year, edition, pages
2004. Vol. 47, no 4, p. 335-342
National Category
Applied Mechanics
Research subject
Solid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-12412DOI: 10.1179/003258904225020828ISI: 000226898500016Scopus ID: 2-s2.0-13844319521Local ID: b8f8f3e0-fafb-11db-b816-000ea68e967bOAI: oai:DiVA.org:ltu-12412DiVA, id: diva2:985363
Note
Validerad; 2004; 20070505 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Eriksson, MagnusHäggblad, Hans-åke

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